ALAS2023-2025-1223: Security update for 22 packages

ALAS2023-2025-1223, released October 14, 2025, fixes 21 CVEs across 22 products. One of them is being exploited (CVE-2025-39964); 1 on CISA KEV. Patch Radar priority: Patch now.

Patch now1 on CISA KEV

CVEs closed

2 rated Critical

Exploited

CVE-2025-39964

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.1026

95th percentile

Priority of the 21 CVEs

Patch now 1
                                Urgent 2
                                High 14
                                Routine 4

Fixed package versions

Product	Release	Fixed in
bpftool	amzn 2023	1:6.1.155-176.282.amzn2023
bpftool-debuginfo	amzn 2023	1:6.1.155-176.282.amzn2023
kernel	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-debuginfo	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-debuginfo-common-aarch64	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-debuginfo-common-x86_64	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-devel	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-headers	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-libbpf	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-libbpf-debuginfo	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-libbpf-devel	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-libbpf-static	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-livepatch-6.1.155-176.282	amzn 2023	1:1.0-0.amzn2023
kernel-modules-extra	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-modules-extra-common	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-tools	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-tools-debuginfo	amzn 2023	1:6.1.155-176.282.amzn2023
kernel-tools-devel	amzn 2023	1:6.1.155-176.282.amzn2023
perf	amzn 2023	1:6.1.155-176.282.amzn2023
perf-debuginfo	amzn 2023	1:6.1.155-176.282.amzn2023
python3-perf	amzn 2023	1:6.1.155-176.282.amzn2023
python3-perf-debuginfo	amzn 2023	1:6.1.155-176.282.amzn2023

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Patch now	CVE-2025-39964	crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg	8.8	0.0161	KEVExploited
Urgent	CVE-2025-39967	fbcon: fix integer overflow in fbcon_do_set_font	9.8	0.0017	None reported
Urgent	CVE-2025-39898	e1000e: fix heap overflow in e1000_set_eeprom	9.8	n/a	None reported
High	CVE-2025-39946	tls: make sure to abort the stream if headers are bogus	7.0	0.1026	None reported
High	CVE-2025-39894	linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: br_netfilter: do not check confirmed...	7.0	0.0033	None reported
High	CVE-2025-39880	libceph: fix invalid accesses to ceph_connection_v1_info	7.8	0.0033	None reported
High	CVE-2025-39980	nexthop: Forbid FDB status change while nexthop is in a group	7.1	0.0023	None reported
High	CVE-2025-40006	linux: In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix folio is still mapped when delet...	7.8	0.0021	None reported
High	CVE-2025-39913	tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork.	7.8	0.0019	None reported
High	CVE-2025-39914	tracing: Silence warning when chunk allocation fails in trace_pid_write	7.0	0.0017	None reported
High	CVE-2025-39931	crypto: af_alg - Set merge to zero early in af_alg_sendmsg	7.0	0.0017	None reported
High	CVE-2025-39902	mm/slub: avoid accessing metadata when pointer is invalid in object_err()	7.8	0.0017	None reported
High	CVE-2025-39955	tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().	7.8	0.0017	None reported
High	CVE-2025-39883	mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory	7.6	0.0016	None reported
High	CVE-2025-39877	mm/damon/sysfs: fix use-after-free in state_show()	7.8	0.0015	None reported
High	CVE-2025-39881	kernfs: Fix UAF in polling when open file is released	7.8	0.0015	None reported
High	CVE-2025-39977	futex: Prevent use-after-free during requeue-PI	7.8	0.0015	None reported
Routine	CVE-2025-40021	tracing: dynevent: Add a missing lockdown check on dynevent	5.5	0.0021	None reported
Routine	CVE-2025-39953	cgroup: split cgroup_destroy_wq into 3 workqueues	5.5	0.0016	None reported
Routine	CVE-2025-39909	mm/damon/lru_sort: avoid divide-by-zero in damon_lru_sort_apply_parameters()	5.5	0.0015	None reported
Routine	CVE-2025-39916	mm/damon/reclaim: avoid divide-by-zero in damon_reclaim_apply_parameters()	5.5	0.0015	None reported

Also fixes CVE-2025-39964

OPENSUSE-SU-2026:21555-1
dtb-aarch64, kernel-64kb, kernel-azure and 10 more on opensuse-leap 16.0
SUSE-SU-2026:23237-1
kernel-default on sles 16.0
SUSE-SU-2026:23231-1
kernel-64kb, kernel-azure, kernel-default-base and 6 more on sles 16.0
RHSA-2026:71326
kernel on RHEL 10
ALAS2023-2025-1254
bpftool6.12, bpftool6.12-debuginfo, kernel-livepatch-6.12.53-69.119 and 19 more on amzn 2023
ELSA-2025-20719
kernel-uek, kernel-uek-core, kernel-uek-debug and 32 more on ol 10, ol 9
SUSE-SU-2026:4120-1
kernel-livepatch-SLE15-SP7-RT_Update_20 on sles 15.7
SUSE-SU-2026:1081-1
kernel-64kb, kernel-azure, kernel-default and 7 more on sles 15.7

Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2025-1223.html

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