Out-of-bounds Write Affecting kernel6.12-libbpf-static package, versions <1:6.12.46-66.121.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL612LIBBPFSTATIC-13166447
  • published1 Oct 2025
  • disclosed4 Sept 2025

Introduced: 4 Sep 2025

CVE-2025-38702  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel6.12-libbpf-static to version 1:6.12.46-66.121.amzn2023 or higher.
This issue was patched in ALAS2023-2025-1208.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel6.12-libbpf-static package and not the kernel6.12-libbpf-static package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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

fbdev: fix potential buffer overflow in do_register_framebuffer()

The current implementation may lead to buffer overflow when:

  1. Unregistration creates NULL gaps in registered_fb[]
  2. All array slots become occupied despite num_registered_fb < FB_MAX
  3. The registration loop exceeds array bounds

Add boundary check to prevent registered_fb[FB_MAX] access.

CVSS Base Scores

version 3.1