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ALSA-2023:5069 — Important: kernel security, bug fix, and enhancement update

Affected: AlmaLinux:9: bpftool, AlmaLinux:9: kernel, AlmaLinux:9: kernel-64k, AlmaLinux:9: kernel-64k-core, AlmaLinux:9: kernel-64k-debug, AlmaLinux:9: kernel-64k-debug-core, AlmaLinux:9: kernel-64k-debug-devel, AlmaLinux:9: kernel-64k-debug-devel-matched, AlmaLinux:9: kernel-64k-debug-modules, AlmaLinux:9: kernel-64k-debug-modules-core and 35 more

The kernel packages contain the Linux kernel, the core of any Linux operating system.

The following packages have been upgraded to a later upstream version: kernel (5.14.0).

Security Fix(es):

* kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390) * kernel: netfilter: nf_tables: fix chain binding transaction logic in the abort path of NFT_MSG_NEWRULE (CVE-2023-3610) * kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function (CVE-2023-3776) * kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (CVE-2023-4004) * kernel: netfilter: nf_tables_newrule when adding a rule with NFTA_RULE_CHAIN_ID leads to use-after-free (CVE-2023-4147) * kernel: nf_tables: use-after-free in nft_chain_lookup_byid() (CVE-2023-31248) * kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001) * kernel: save/restore speculative MSRs during S3 suspend/resume (CVE-2023-1637) * hw: amd: Cross-Process Information Leak (CVE-2023-20593) * kernel: bypass of shadow stack protection due to a logic error (CVE-2023-21102)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

* [Intel 9.3 BUG] [SPR][EMR][FHF] ACPI: Fix system hang during S3 wakeup (BZ#2218026) * [Dell 9.2 BUG]…

bdu:2023-04270

Withdrawn: BELL-CVE-2023-3776 — CVE-2023-3776 does not affect BellSoft software

Withdrawn by the publisher.

certfr-2023-avi-0663 — De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'e…

certfr-2023-avi-0663

EUVD-2026-220615

fkie_cve-2023-3776

A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.

If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.

We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.

GHSA-fcg7-9x44-gx43

A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.

We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.

gsd-2023-3776

ICSA-23-166-10 — Siemens SIMATIC S7-1500 TM MFP BIOS

The iconv program in the GNU C Library (aka glibc or libc6) 2.31 and earlier, when invoked with multiple suffixes in the destination encoding (TRANSLATE or IGNORE) along with the -c option, enters an infinite loop when processing invalid multi-byte input sequences, leading to a denial of service. The iconv feature in the GNU C Library (aka glibc or libc6) through 2.32, when processing invalid multi-byte input sequences in the EUC-KR encoding, may have a buffer over-read. A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32. The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c. The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid multi-byte input sequences in IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 encodings, fails to advance the input state, which could lead to an infinite lo…

msrc_CVE-2023-3776 — Use-after-free in Linux kernel's net/sched: cls_fw component

msrc_CVE-2023-3776

OESA-2023-1467 — kernel security update

Affected: openEuler:22.03-LTS-SP1: kernel

The Linux Kernel, the operating system core itself. Security Fix(es): In multiple functions of binder.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. (CVE-2023-21255) (CVE-2023-2163) A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.(CVE-2023-32248) VUL-0: CVE-2023-32255: kernel: Linux Kernel ksmbd Session Setup Memory Leak Denial-of-Service Vulnerability(CVE-2023-32255) A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This flaw allows an attacker with local user access to cause a system crash or leak internal kernel information.(CVE-2023-3567) A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they…

RHSA-2023:5069 — Red Hat Security Advisory: kernel security, bug fix, and enhancement update

kernel: seccomp: Move copy_seccomp() to no failure path kernel: save/restore speculative MSRs during S3 suspend/resume kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests kernel: netfilter: nf_tables: fix chain binding transaction logic in the abort path of NFT_MSG_NEWRULE kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() kernel: netfilter: nf_tables_newrule when adding a rule with NFTA_RULE_CHAIN_ID leads to use-after-free hw: amd: Cross-Process Information Leak kernel: bypass of shadow stack protection due to a logic error kernel: nf_tables: use-after-free in nft_chain_lookup_byid() kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() kernel: buffer overflow in ceph file net/ceph/messenger_v2.c kernel: Linux kernel: Denial of Service due to GIC state corruption on NVIDIA T241 platforms kernel: Linux kernel iavf driver: Denial of Service via use-after-free vulnerability kernel: virt/coco/sev-guest: Double-buffer messages

RHSA-2023:5091 — Red Hat Security Advisory: kernel-rt security and bug fix update

kernel: save/restore speculative MSRs during S3 suspend/resume kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests kernel: netfilter: nf_tables: fix chain binding transaction logic in the abort path of NFT_MSG_NEWRULE kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() kernel: netfilter: nf_tables_newrule when adding a rule with NFTA_RULE_CHAIN_ID leads to use-after-free hw: amd: Cross-Process Information Leak kernel: bypass of shadow stack protection due to a logic error kernel: nf_tables: use-after-free in nft_chain_lookup_byid() kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()

SUSE-SU-2023:3302-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2023-3776

Affected: Ubuntu:Pro:14.04:LTS: linux, Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:16.04:LTS: linux, Ubuntu:Pro:16.04:LTS: linux-aws, Ubuntu:Pro:16.04:LTS: linux-aws-hwe, Ubuntu:Pro:16.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-gcp, Ubuntu:Pro:16.04:LTS: linux-hwe and 142 more

A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.

WID-SEC-W-2023-1862 — Linux Kernel: Mehrere Schwachstellen ermöglicht Privilegieneskalation

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um seine Privilegien zu erhöhen.