CVE-2025-38639

MEDIUM

Linux Kernel - Out-of-Bounds Read in xt_nfacct Name Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_nfacct: don't assume acct name is null-terminated BUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721 Read of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851 [..] string+0x231/0x2b0 lib/vsprintf.c:721 vsnprintf+0x739/0xf00 lib/vsprintf.c:2874 [..] nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41 xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523 nfnl_acct_find_get() handles non-null input, but the error printk relied on its presence.

References (11)

Core 11
Core References

Scores

CVSS v3 5.5
EPSS 0.0002
EPSS Percentile 7.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (30)
debian/debian_linux 11.0
linux/Kernel 3.3.0 - 5.4.297linux
linux/Kernel 5.11.0 - 5.15.190linux
linux/Kernel 5.16.0 - 6.1.148linux
linux/Kernel 5.5.0 - 5.10.241linux
linux/Kernel 6.13.0 - 6.15.10linux
linux/Kernel 6.16.0 - 6.16.1linux
linux/Kernel 6.2.0 - 6.6.102linux
linux/Kernel 6.7.0 - 6.12.42linux
Linux/Linux < 3.3
... and 20 more
Published Aug 22, 2025
Tracked Since Feb 18, 2026