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ALSA-2024:0897 — Important: kernel security update

Affected: AlmaLinux:8: bpftool, AlmaLinux:8: kernel, AlmaLinux:8: kernel-abi-stablelists, AlmaLinux:8: kernel-core, AlmaLinux:8: kernel-cross-headers, AlmaLinux:8: kernel-debug, AlmaLinux:8: kernel-debug-core, AlmaLinux:8: kernel-debug-devel, AlmaLinux:8: kernel-debug-modules, AlmaLinux:8: kernel-debug-modules-extra and 14 more

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

Security Fix(es):

* kernel: net/sched: sch_hfsc UAF (CVE-2023-4623) * kernel: use-after-free in sch_qfq network scheduler (CVE-2023-4921) * kernel: inactive elements in nft_pipapo_walk (CVE-2023-6817) * kernel: IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871) * kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646) * kernel: nfp: use-after-free in area_cache_get() (CVE-2022-3545) * kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858) * kernel: HID: check empty report_list in hid_validate_values() (CVE-2023-1073) * kernel: Possible use-after-free since the two fdget() during vhost_net_set_backend() (CVE-2023-1838) * kernel: NULL pointer dereference in can_rcv_filter (CVE-2023-2166) * kernel: Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176) * kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list (CVE-2023-5717) * kernel: NULL pointer dereference in nvmet_tcp_build_iovec (CVE-2023-6356) * kernel: NULL pointer dereference in nvmet_tcp_execute_request (CVE-2023-6535) * kernel: NULL pointer dereference in __nvmet_req_complete (CVE-2023-6536) * kernel: Out-Of-Bounds Read vulnerability in smbCalcSize (CVE-2023-6606) * kernel: OOB Access in smb2_dump_detail (CVE-2023-661…

bdu:2023-04770

Withdrawn: BELL-CVE-2023-40283 — CVE-2023-40283 does not affect BellSoft software

Withdrawn by the publisher.

certfr-2023-avi-0687 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian. Certaines d'…

certfr-2023-avi-0687

cnvd-2023-64508

EUVD-2026-371934

fkie_cve-2023-40283

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.

GHSA-cp56-rpr6-7673

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.

gsd-2023-40283

ICSA-23-348-10 — Siemens SIMATIC S7-1500

expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE. shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees run-mailcap in the Debian mime-support package before 3.52-1+deb7u1 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in a filename. In Python (aka CPython) up to 3.10.8, the mailcap module does not add escape characters into commands discovered in the system mailcap file. This may allow attackers to inject shell commands into applications that call mailcap.findmatch with untrusted input (if they lack validation of user-provided filenames or arguments). The fix is also back-ported to 3.7, 3.8, 3.9 Use-after-free vulnerability in bzip2recover in bzip2 1.0.6 allows remote attackers to cause a denial of service (crash) via a crafted bzip2 file, related to block ends set to before the start o…

msrc_CVE-2023-40283 — An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is…

msrc_CVE-2023-40283

OESA-2023-1584 — kernel security update

Affected: openEuler:20.03-LTS-SP3: kernel

The Linux Kernel, the operating system core itself. Security Fix(es): A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.(CVE-2023-1206) A buffer overrun vulnerability was found in the netback driver in Xen due to an unusual split packet. This flaw allows an unprivileged guest to cause a denial of service (DoS) of the host by sending network packets to the backend, causing the backend to crash.(CVE-2023-34319) An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.(CVE-2023-40283) A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ("tun: tun_chr_open(): correctly initialize socket uid"), - 66b2c338adce ("tap: tap_open(): correctly initialize socket uid"), pass "inode->i_uid" to sock_init_data_uid() as the last parameter and that turns out to not be accurate.(CVE-2023-4194) A NULL pointe…

RHSA-2024:0439 — Red Hat Security Advisory: kernel-rt security update

kernel: nfp: use-after-free in area_cache_get() kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip kernel: objtool: Fix SEGFAULT kernel: use-after-free in smb2_is_status_io_timeout() kernel: UAF during login when accessing the shost ipaddress kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe kernel: NULL pointer dereference in can_rcv_filter kernel: Slab-out-of-bound read in compare_netdev_and_ip kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race kernel: use-after-free in netfilter: nf_tables kernel: use after free in nft_immediate_deactivate kernel: use after free in unix_stream_sendpage kernel: net/sched: sch_hfsc UAF kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list kernel: NULL pointer dereference in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c amd: Return Address Predictor vulnerability leading to information disclosure kernel: fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment kernel: eBPF: insufficient stack type checks in dynptr kernel: use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c kernel: IGB driver inadequate buffer size for frames larger than MTU kernel: SEV-ES local priv escalation kernel: vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF

RHSA-2024:0461 — Red Hat Security Advisory: kernel security update

kernel: nfp: use-after-free in area_cache_get() kernel: vmwgfx: integer overflow in vmwgfx_execbuf.c kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip kernel: NULL pointer dereference in can_rcv_filter kernel: Slab-out-of-bound read in compare_netdev_and_ip kernel: use-after-free in netfilter: nf_tables kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags kernel: use after free in nft_immediate_deactivate kernel: use after free in unix_stream_sendpage kernel: net/sched: sch_hfsc UAF kernel: use after free in nvmet_tcp_free_crypto in NVMe kernel: vmwgfx: reference count issue leads to use-after-free in surface handling kernel: NULL pointer dereference in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c kernel: fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment kernel: use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c kernel: netfilter: potential slab-out-of-bound access due to integer underflow kernel: SEV-ES local priv escalation

SUSE-SU-2023:3599-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2023-40283

Affected: Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:14.04:LTS: linux, 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 140 more

An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.

WID-SEC-W-2023-2054 — Linux Kernel: Schwachstelle ermöglicht nicht spezifizierten Angriff

Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.