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CVE-2026-47337 (GCVE-0-2026-47337)

Vulnerability from nvd – Published: 2026-05-28 18:29 – Updated: 2026-05-28 19:23

Title

NULL pointer dereference in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:21 UTC

CWE

CWE-476 - NULL pointer dereference

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security Trevor Lawrence, _SiCk, afflicted.sh

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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                "id": "CVE-2026-47337",
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CVE-2026-47336 (GCVE-0-2026-47336)

Vulnerability from nvd – Published: 2026-05-28 18:29 – Updated: 2026-05-28 19:23

Title

Use of uninitialized value in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation rules

Summary

Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:21 UTC

CWE

CWE-457 - Use of uninitialized variable

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-47335 (GCVE-0-2026-47335)

Vulnerability from nvd – Published: 2026-05-28 18:28 – Updated: 2026-05-28 19:23

Title

NULL pointer dereference in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel panic.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:21 UTC

CWE

CWE-476 - NULL pointer dereference

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47334 (GCVE-0-2026-47334)

Vulnerability from nvd – Published: 2026-05-28 18:28 – Updated: 2026-05-28 19:23

Title

Deadlock or kernel panic in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock in notification handling code. The bug can be triggered by an unprivileged local user and can result in kernel panic or deadlock.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:21 UTC

CWE

CWE-833 - Deadlock

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-47333 (GCVE-0-2026-47333)

Vulnerability from nvd – Published: 2026-05-28 18:28 – Updated: 2026-05-29 03:55

Title

Out-of-bounds read in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 00:00 UTC

CWE

CWE-125 - Out-of-bounds read

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47332 (GCVE-0-2026-47332)

Vulnerability from nvd – Published: 2026-05-28 18:28 – Updated: 2026-05-28 19:24

Title

Out-of-bounds read in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an internal structure, leading to an out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in information disclosure from adjacent slab objects.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:17 UTC

CWE

CWE-125 - Out-of-bounds read

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47331 (GCVE-0-2026-47331)

Vulnerability from nvd – Published: 2026-05-28 18:28 – Updated: 2026-05-29 03:55

Title

Use-after-free in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 00:00 UTC

CWE

CWE-416 - Use After Free

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-47330 (GCVE-0-2026-47330)

Vulnerability from nvd – Published: 2026-05-28 18:27 – Updated: 2026-05-28 19:24

Title

Use of uninitialized value in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitialized variable in notification handling code. The bug can be triggered by an unprivileged local user and can result in the incorrect caching of AppArmor notification responses.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:19 UTC

CWE

CWE-457 - Use of uninitialized variable

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47329 (GCVE-0-2026-47329)

Vulnerability from nvd – Published: 2026-05-28 18:27 – Updated: 2026-05-28 19:24

Title

Incorrect validation of field size in Ubuntu Linux AppArmor notification responses

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches which fail to validate invalid sizes of the name field in AppAmor notification responses. The bug can be triggered by an unprivileged local user and could result in handling of crafted responses.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:19 UTC

CWE

CWE-1284 - Improper validation of specified quantity in input

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47328 (GCVE-0-2026-47328)

Vulnerability from nvd – Published: 2026-05-28 18:27 – Updated: 2026-05-28 19:25

Title

Invalid pointer deallocation in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:20 UTC

CWE

CWE-590 - Free of memory not on the heap

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47327 (GCVE-0-2026-47327)

Vulnerability from nvd – Published: 2026-05-28 18:27 – Updated: 2026-05-28 19:25

Title

NULL pointer dereference in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:20 UTC

CWE

CWE-476 - NULL pointer dereference

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47326 (GCVE-0-2026-47326)

Vulnerability from nvd – Published: 2026-05-28 18:26 – Updated: 2026-05-28 19:25

Title

Memory leak in Ubuntu Linux AppArmor large notification response allocation

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor notifications. The bug can be triggered by an unprivileged local user. The memory leak could lead to resource exhaustion.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:20 UTC

CWE

CWE-401 - Missing release of memory after effective lifetime

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2025-13350 (GCVE-0-2025-13350)

Vulnerability from nvd – Published: 2026-03-05 18:56 – Updated: 2026-03-06 10:37

Title

Use-after-free of orphaned AF_UNIX in Ubuntu builds of Linux kernel

Summary

Ubuntu Linux 6.8 GA retains the legacy AF_UNIX garbage collector but backports upstream commit 8594d9b85c07 ("af_unix: Don’t call skb_get() for OOB skb"). When orphaned MSG_OOB sockets hit unix_gc(), the garbage collector still calls kfree_skb() as if OOB SKBs held two references; on Ubuntu Linux 6.8 (Noble Numbat) kernel tree, they have only the queue reference, so the buffer is freed while still reachable and subsequent queue walks dereference freed memory, yielding a reliable local privilege escalation (LPE) caused by a use-after-free (UAF). Ubuntu builds that have already taken the new GC stack from commit 4090fa373f0e, and mainline Linux kernels shipping that infrastructure are unaffected because they no longer execute the legacy collector path. This issue affects Ubuntu Linux from 6.8.0-56.58 before 6.8.0-84.84.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:H/SI:H/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-06 10:37 UTC

CWE

CWE-416 - Use After Free

Assigner

canonical mitre root Scorecard

References

3 references

URL	Tags
https://bugs.launchpad.net/ubuntu/+source/linux/+…	issue-tracking
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch
http://www.openwall.com/lists/oss-security/2026/03/05/7

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0-56.58 , < 6.8.0-84.84 (dpkg)

Credits

Noam Rathaus

Show details on NVD website

JSON

To clipboard

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CVE-2026-47337 (GCVE-0-2026-47337)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:29 – Updated: 2026-05-28 19:23

Title

NULL pointer dereference in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:21 UTC

CWE

CWE-476 - NULL pointer dereference

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security Trevor Lawrence, _SiCk, afflicted.sh

Show details on NVD website

JSON

To clipboard

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CVE-2026-47336 (GCVE-0-2026-47336)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:29 – Updated: 2026-05-28 19:23

Title

Use of uninitialized value in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation rules

Summary

Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:21 UTC

CWE

CWE-457 - Use of uninitialized variable

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47335 (GCVE-0-2026-47335)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:28 – Updated: 2026-05-28 19:23

Title

NULL pointer dereference in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel panic.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:21 UTC

CWE

CWE-476 - NULL pointer dereference

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47334 (GCVE-0-2026-47334)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:28 – Updated: 2026-05-28 19:23

Title

Deadlock or kernel panic in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock in notification handling code. The bug can be triggered by an unprivileged local user and can result in kernel panic or deadlock.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:21 UTC

CWE

CWE-833 - Deadlock

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47333 (GCVE-0-2026-47333)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:28 – Updated: 2026-05-29 03:55

Title

Out-of-bounds read in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 00:00 UTC

CWE

CWE-125 - Out-of-bounds read

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47332 (GCVE-0-2026-47332)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:28 – Updated: 2026-05-28 19:24

Title

Out-of-bounds read in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an internal structure, leading to an out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in information disclosure from adjacent slab objects.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:17 UTC

CWE

CWE-125 - Out-of-bounds read

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47331 (GCVE-0-2026-47331)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:28 – Updated: 2026-05-29 03:55

Title

Use-after-free in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 00:00 UTC

CWE

CWE-416 - Use After Free

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47330 (GCVE-0-2026-47330)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:27 – Updated: 2026-05-28 19:24

Title

Use of uninitialized value in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitialized variable in notification handling code. The bug can be triggered by an unprivileged local user and can result in the incorrect caching of AppArmor notification responses.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:19 UTC

CWE

CWE-457 - Use of uninitialized variable

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47329 (GCVE-0-2026-47329)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:27 – Updated: 2026-05-28 19:24

Title

Incorrect validation of field size in Ubuntu Linux AppArmor notification responses

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches which fail to validate invalid sizes of the name field in AppAmor notification responses. The bug can be triggered by an unprivileged local user and could result in handling of crafted responses.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:19 UTC

CWE

CWE-1284 - Improper validation of specified quantity in input

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47328 (GCVE-0-2026-47328)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:27 – Updated: 2026-05-28 19:25

Title

Invalid pointer deallocation in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:20 UTC

CWE

CWE-590 - Free of memory not on the heap

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47327 (GCVE-0-2026-47327)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:27 – Updated: 2026-05-28 19:25

Title

NULL pointer dereference in Ubuntu Linux AppArmor notification handling

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.

Severity

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:20 UTC

CWE

CWE-476 - NULL pointer dereference

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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CVE-2026-47326 (GCVE-0-2026-47326)

Vulnerability from cvelistv5 – Published: 2026-05-28 18:26 – Updated: 2026-05-28 19:25

Title

Memory leak in Ubuntu Linux AppArmor large notification response allocation

Summary

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor notifications. The bug can be triggered by an unprivileged local user. The memory leak could lead to resource exhaustion.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-28 19:20 UTC

CWE

CWE-401 - Missing release of memory after effective lifetime

Assigner

canonical mitre root Scorecard

References

1 reference

URL	Tags
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0 , < 6.8.0-124.124 (dpkg) Affected: 6.17.0 , < 6.17.0-35.35 (dpkg) Affected: 7.0.0 , < 7.0.0-22.22 (dpkg)

Credits

Tristan Madani (@TristanInSec), Talence Security

Show details on NVD website

JSON

To clipboard

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              "version": "6.17.0",
              "versionType": "dpkg"
            },
            {
              "lessThan": "7.0.0-22.22",
              "status": "affected",
              "version": "7.0.0",
              "versionType": "dpkg"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Tristan Madani (@TristanInSec), Talence Security"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor notifications. The bug can be triggered by an unprivileged local user. The memory leak could lead to resource exhaustion."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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          },
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            {
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          ]
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      ],
      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-401",
              "description": "CWE-401 Missing release of memory after effective lifetime",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
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          "url": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=8d858ecb7e2e216ca2987302a04c266f2355fefe"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Memory leak in Ubuntu Linux AppArmor large notification response allocation"
    }
  },
  "cveMetadata": {
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CVE-2025-13350 (GCVE-0-2025-13350)

Vulnerability from cvelistv5 – Published: 2026-03-05 18:56 – Updated: 2026-03-06 10:37

Title

Use-after-free of orphaned AF_UNIX in Ubuntu builds of Linux kernel

Summary

Ubuntu Linux 6.8 GA retains the legacy AF_UNIX garbage collector but backports upstream commit 8594d9b85c07 ("af_unix: Don’t call skb_get() for OOB skb"). When orphaned MSG_OOB sockets hit unix_gc(), the garbage collector still calls kfree_skb() as if OOB SKBs held two references; on Ubuntu Linux 6.8 (Noble Numbat) kernel tree, they have only the queue reference, so the buffer is freed while still reachable and subsequent queue walks dereference freed memory, yielding a reliable local privilege escalation (LPE) caused by a use-after-free (UAF). Ubuntu builds that have already taken the new GC stack from commit 4090fa373f0e, and mainline Linux kernels shipping that infrastructure are unaffected because they no longer execute the legacy collector path. This issue affects Ubuntu Linux from 6.8.0-56.58 before 6.8.0-84.84.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:H/SI:H/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-06 10:37 UTC

CWE

CWE-416 - Use After Free

Assigner

canonical mitre root Scorecard

References

3 references

URL	Tags
https://bugs.launchpad.net/ubuntu/+source/linux/+…	issue-tracking
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+…	patch
http://www.openwall.com/lists/oss-security/2026/03/05/7

Impacted products

1 product

Vendor	Product	Version
Canonical	Ubuntu Linux	Affected: 6.8.0-56.58 , < 6.8.0-84.84 (dpkg)

Credits

Noam Rathaus

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "providerMetadata": {
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        {
          "collectionURL": "https://launchpad.net/ubuntu/+source/",
          "defaultStatus": "unaffected",
          "modules": [
            "AF_UNIX"
          ],
          "packageName": "linux",
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            "net/unix/garbage.c"
          ],
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            {
              "name": "unix_gc()"
            }
          ],
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26 vulnerabilities found for Ubuntu Linux by Canonical

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CVE-2025-13350 (GCVE-0-2025-13350)

CVE-2026-47337 (GCVE-0-2026-47337)

CVE-2026-47336 (GCVE-0-2026-47336)

CVE-2026-47335 (GCVE-0-2026-47335)

CVE-2026-47334 (GCVE-0-2026-47334)

CVE-2026-47333 (GCVE-0-2026-47333)

CVE-2026-47332 (GCVE-0-2026-47332)

CVE-2026-47331 (GCVE-0-2026-47331)

CVE-2026-47330 (GCVE-0-2026-47330)

CVE-2026-47329 (GCVE-0-2026-47329)

CVE-2026-47328 (GCVE-0-2026-47328)

CVE-2026-47327 (GCVE-0-2026-47327)

CVE-2026-47326 (GCVE-0-2026-47326)

CVE-2025-13350 (GCVE-0-2025-13350)