Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1210)

medium Nessus Plugin ID 266148

Synopsis

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

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1210 advisory.

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

fs: relax assertions on failure to encode file handles (CVE-2024-57924)

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

net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod. (CVE-2025-23143)

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

media: mediatek: vcodec: Fix a resource leak related to the scp device in FW initialization (CVE-2025-23160)

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

btrfs: adjust subpage bit start based on sectorsize (CVE-2025-37931)

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

RDMA/core: Fix KASAN: slab-use-after-free Read in ib_register_device problem (CVE-2025-38022)

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

netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX (CVE-2025-38201)

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

bpf: Fix oob access in cgroup local storage (CVE-2025-38502)

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

net/mlx5e: Remove skb secpath if xfrm state is not found (CVE-2025-38590)

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

net/sched: Fix backlog accounting in qdisc_dequeue_internal (CVE-2025-39677)

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

cifs: prevent NULL pointer dereference in UTF16 conversion (CVE-2025-39838)

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

batman-adv: fix OOB read/write in network-coding decode (CVE-2025-39839)

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

ocfs2: prevent release journal inode after journal shutdown (CVE-2025-39842)

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

mm: slub: avoid wake up kswapd in set_track_prepare (CVE-2025-39843)

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

mm: move page table sync declarations to linux/pgtable.h (CVE-2025-39844)

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

x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() (CVE-2025-39845)

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

pcmcia: Fix a NULL pointer dereference in __iodyn_find_io_region() (CVE-2025-39846)

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

ppp: fix memory leak in pad_compress_skb (CVE-2025-39847)

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

ax25: properly unshare skbs in ax25_kiss_rcv() (CVE-2025-39848)

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

wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() (CVE-2025-39849)

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

fs: writeback: fix use-after-free in __mark_inode_dirty() (CVE-2025-39866)

In the Linux kernel, the following vulnerability has been resolved:x86/vmscape: Add conditional IBPB mitigation

VMSCAPE is a vulnerability that exploits insufficient branch predictor isolation between a guest and a userspace hypervisor (like QEMU). Existing mitigations already protect kernel/KVM from a malicious guest.
Userspace can additionally be protected by flushing the branch predictors after a VMexit.

Since it is the userspace that consumes the poisoned branch predictors, conditionally issue an IBPB after a VMexit and before returning to userspace. Workloads that frequently switch between hypervisor and userspace will incur the most overhead from the new IBPB.

This new IBPB is not integrated with the existing IBPB sites. For instance, a task can use the existing speculation control prctl() to get an IBPB at context switch time. With this implementation, the IBPB is doubled up: one at context switch and another before running userspace. The intent is to integrate and optimize these cases post-embargo.[ dhansen: elaborate on suboptimal IBPB solution ] (CVE-2025-40300)

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 kernel --releasever 2023.9.20250929' or or 'dnf update --advisory ALAS2023-2025-1210 --releasever 2023.9.20250929' to update your system.

Plugin Details

Severity: Medium

ID: 266148

File Name: al2023_ALAS2023-2025-1210.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 9/30/2025

Updated: 9/30/2025

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.1

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2024-57924

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:kernel-libbpf-devel, p-cpe:/a:amazon:linux:kernel-libbpf-static, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:kernel-modules-extra-common, p-cpe:/a:amazon:linux:kernel-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:kernel-headers, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:python3-perf, p-cpe:/a:amazon:linux:python3-perf-debuginfo, p-cpe:/a:amazon:linux:kernel-libbpf, p-cpe:/a:amazon:linux:kernel-modules-extra, p-cpe:/a:amazon:linux:kernel-libbpf-debuginfo, p-cpe:/a:amazon:linux:kernel-livepatch-6.1.153-175.280

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

Exploit Available: true

Exploit Ease: No known exploits are available

Patch Publication Date: 9/29/2025

Vulnerability Publication Date: 1/19/2025

Reference Information

CVE: CVE-2024-57924, CVE-2025-23143, CVE-2025-23160, CVE-2025-37931, CVE-2025-38022, CVE-2025-38201, CVE-2025-38502, CVE-2025-38590, CVE-2025-39677, CVE-2025-39838, CVE-2025-39839, CVE-2025-39842, CVE-2025-39843, CVE-2025-39844, CVE-2025-39845, CVE-2025-39846, CVE-2025-39847, CVE-2025-39848, CVE-2025-39849, CVE-2025-39866, CVE-2025-40300

Detections

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