PT-2025-18871 · Linux+3 · Linux Kernel+3
Published
2023-03-15
·
Updated
2026-02-02
·
CVE-2023-53107
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.1.4-cloudflare-kasan-2023.1.2
Description
A use-after-free issue has been identified in the Linux kernel, specifically in the
veth module. This issue arises when the pskb expand head() function is used to expand the head of a socket buffer (skb), which can lead to the skb being freed while still in use by AF XDP. The problem was introduced by a commit that reworked the veth xdp rcv skb function. The issue can cause a crash or potentially allow an attacker to execute arbitrary code.Recommendations
To resolve this issue, update the Linux kernel to a version that includes the fix for this problem.
As a temporary workaround, consider disabling the
veth xdp rcv skb function until a patch is available.
Restrict access to the veth module to minimize the risk of exploitation.Exploit
Fix
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Hat
Red Os