Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1543)

high Nessus Plugin ID 305231

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1543 advisory.

In the Linux kernel, the following vulnerability has been resolved:

fs/xattr: missing fdput() in fremovexattr error path (CVE-2024-14027)

In the Linux kernel, the following vulnerability has been resolved:

audit: add fchmodat2() to change attributes class (CVE-2025-71239)

In the Linux kernel, the following vulnerability has been resolved:

fs: ntfs3: fix infinite loop in attr_load_runs_range on inconsistent metadata (CVE-2025-71265)

In the Linux kernel, the following vulnerability has been resolved:

fs: ntfs3: check return value of indx_find to avoid infinite loop (CVE-2025-71266)

In the Linux kernel, the following vulnerability has been resolved:

fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST (CVE-2025-71267)

In the Linux kernel, the following vulnerability has been resolved:

btrfs: do not strictly require dirty metadata threshold for metadata writepages (CVE-2026-23157)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (CVE-2026-23231)

In the Linux kernel, the following vulnerability has been resolved:

espintcp: Fix race condition in espintcp_close() (CVE-2026-23239)

In the Linux kernel, the following vulnerability has been resolved:

tls: Fix race condition in tls_sw_cancel_work_tx() (CVE-2026-23240)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/umad: Reject negative data_len in ib_umad_write (CVE-2026-23243)

In the Linux kernel, the following vulnerability has been resolved:

nvme: fix memory allocation in nvme_pr_read_keys() (CVE-2026-23244)

In the Linux kernel, the following vulnerability has been resolved:

xfs: check for deleted cursors when revalidating two btrees (CVE-2026-23249)

In the Linux kernel, the following vulnerability has been resolved:

net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (CVE-2026-23270)

In the Linux kernel, the following vulnerability has been resolved:

perf: Fix __perf_event_overflow() vs perf_remove_from_context() race (CVE-2026-23271)

In the Linux kernel, the following vulnerability has been resolved:

macvlan: observe an RCU grace period in macvlan_common_newlink() error path (CVE-2026-23273)

In the Linux kernel, the following vulnerability has been resolved:

drbd: fix null-pointer dereference on local read error (CVE-2026-23285)

In the Linux kernel, the following vulnerability has been resolved:

scsi: target: Fix recursive locking in __configfs_open_file() (CVE-2026-23292)

In the Linux kernel, the following vulnerability has been resolved:

net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled (CVE-2026-23293)

In the Linux kernel, the following vulnerability has been resolved:

scsi: core: Fix refcount leak for tagset_refcnt (CVE-2026-23296)

In the Linux kernel, the following vulnerability has been resolved:

nfsd: Fix cred ref leak in nfsd_nl_threads_set_doit(). (CVE-2026-23297)

In the Linux kernel, the following vulnerability has been resolved:

net: ipv6: fix panic when IPv4 route references loopback IPv6 nexthop (CVE-2026-23300)

In the Linux kernel, the following vulnerability has been resolved:

smb: client: Don't log plaintext credentials in cifs_set_cifscreds (CVE-2026-23303)

In the Linux kernel, the following vulnerability has been resolved:

ipv6: fix NULL pointer deref in ip6_rt_get_dev_rcu() (CVE-2026-23304)

In the Linux kernel, the following vulnerability has been resolved:

bpf/bonding: reject vlan+srcmac xmit_hash_policy change when XDP is loaded (CVE-2026-23310)

In the Linux kernel, the following vulnerability has been resolved:

i40e: Fix preempt count leak in napi poll tracepoint (CVE-2026-23313)

In the Linux kernel, the following vulnerability has been resolved:

net: ipv4: fix ARM64 alignment fault in multipath hash seed (CVE-2026-23316)

In the Linux kernel, the following vulnerability has been resolved:

drm/vmwgfx: Return the correct value in vmw_translate_ptr functions (CVE-2026-23317)

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim (CVE-2026-23319)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah() (CVE-2026-23335)

In the Linux kernel, the following vulnerability has been resolved:

net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs (CVE-2026-23340)

In the Linux kernel, the following vulnerability has been resolved:

xdp: produce a warning when calculated tailroom is negative (CVE-2026-23343)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft_set_pipapo: split gc into unlink and reclaim phase (CVE-2026-23351)

In the Linux kernel, the following vulnerability has been resolved:

x86/efi: defer freeing of boot services memory (CVE-2026-23352)

In the Linux kernel, the following vulnerability has been resolved:

x86/fred: Correct speculative safety in fred_extint() (CVE-2026-23354)

In the Linux kernel, the following vulnerability has been resolved:

drbd: fix LOGIC BUG in drbd_al_begin_io_nonblock() (CVE-2026-23356)

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix stack-out-of-bounds write in devmap (CVE-2026-23359)

In the Linux kernel, the following vulnerability has been resolved:

nvme: fix admin queue leak on controller reset (CVE-2026-23360)

In the Linux kernel, the following vulnerability has been resolved:

PCI: dwc: ep: Flush MSI-X write before unmapping its ATU entry (CVE-2026-23361)

In the Linux kernel, the following vulnerability has been resolved:

can: bcm: fix locking for bcm_op runtime updates (CVE-2026-23362)

In the Linux kernel, the following vulnerability has been resolved:

i2c: i801: Revert i2c: i801: replace acpi_lock with I2C bus lock (CVE-2026-23369)

In the Linux kernel, the following vulnerability has been resolved:

net/sched: ets: fix divide by zero in the offload path (CVE-2026-23379)

In the Linux kernel, the following vulnerability has been resolved:

tracing: Fix WARN_ON in tracing_buffers_mmap_close (CVE-2026-23380)

In the Linux kernel, the following vulnerability has been resolved:

net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled (CVE-2026-23381)

In the Linux kernel, the following vulnerability has been resolved:

bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing (CVE-2026-23383)

In the Linux kernel, the following vulnerability has been resolved:

Squashfs: check metadata block offset is within range (CVE-2026-23388)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Run 'dnf update kernel6.12 --releasever 2023.11.20260406' or or 'dnf update --advisory ALAS2023-2026-1543 --releasever 2023.11.20260406' to update your system.

Plugin Details

Severity: High

ID: 305231

File Name: al2023_ALAS2023-2026-1543.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 4/7/2026

Updated: 4/7/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-23231

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:kernel6.12-devel, p-cpe:/a:amazon:linux:kernel6.12-modules-extra, p-cpe:/a:amazon:linux:bpftool6.12, p-cpe:/a:amazon:linux:kernel6.12-libbpf-static, p-cpe:/a:amazon:linux:kernel6.12-libbpf-debuginfo, p-cpe:/a:amazon:linux:perf6.12-debuginfo, p-cpe:/a:amazon:linux:kernel6.12-headers, p-cpe:/a:amazon:linux:kernel6.12-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:perf6.12, p-cpe:/a:amazon:linux:kernel6.12-tools-debuginfo, p-cpe:/a:amazon:linux:kernel6.12-tools, p-cpe:/a:amazon:linux:python3-perf6.12, p-cpe:/a:amazon:linux:python3-perf6.12-debuginfo, p-cpe:/a:amazon:linux:bpftool6.12-debuginfo, p-cpe:/a:amazon:linux:kernel6.12, p-cpe:/a:amazon:linux:kernel6.12-tools-devel, p-cpe:/a:amazon:linux:kernel6.12-libbpf-devel, p-cpe:/a:amazon:linux:kernel6.12-libbpf, p-cpe:/a:amazon:linux:kernel6.12-modules-extra-common, p-cpe:/a:amazon:linux:kernel6.12-debuginfo, p-cpe:/a:amazon:linux:kernel6.12-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:kernel-livepatch-6.12.77-99.140

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 4/7/2026

Vulnerability Publication Date: 2/14/2026

Reference Information

CVE: CVE-2024-14027, CVE-2025-71239, CVE-2025-71265, CVE-2025-71266, CVE-2025-71267, CVE-2026-23157, CVE-2026-23231, CVE-2026-23239, CVE-2026-23240, CVE-2026-23243, CVE-2026-23244, CVE-2026-23249, CVE-2026-23270, CVE-2026-23271, CVE-2026-23273, CVE-2026-23285, CVE-2026-23292, CVE-2026-23293, CVE-2026-23296, CVE-2026-23297, CVE-2026-23300, CVE-2026-23303, CVE-2026-23304, CVE-2026-23310, CVE-2026-23313, CVE-2026-23316, CVE-2026-23317, CVE-2026-23319, CVE-2026-23335, CVE-2026-23340, CVE-2026-23343, CVE-2026-23351, CVE-2026-23352, CVE-2026-23354, CVE-2026-23356, CVE-2026-23359, CVE-2026-23360, CVE-2026-23361, CVE-2026-23362, CVE-2026-23369, CVE-2026-23379, CVE-2026-23380, CVE-2026-23381, CVE-2026-23383, CVE-2026-23388

Detections

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