CVE-2026-25068

描述

alsa-lib versions 1.2.2 up to and including 1.2.15.2, prior to commit 5f7fe33, contain a heap-based buffer overflow in the topology mixer control decoder. The tplg_decode_control_mixer1() function reads the num_channels field from untrusted .tplg data and uses it as a loop bound without validating it against the fixed-size channel array (SND_TPLG_MAX_CHAN). A crafted topology file with an excessive num_channels value can cause out-of-bounds heap writes, leading to a crash.

如何修補 CVE-2026-25068

要修補 CVE-2026-25068,請將受影響套件升級到下列已修補版本。

• Debian/alsa-lib—升級至 1.2.4-1.1+deb11u1 或更新版本
• —升級至 1.2.4-1.1+deb11u1 或更新版本

CVE-2026-25068 正在被利用嗎?

低 — EPSS 為 0.0%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 1.2.4-1.1+deb11u1
• from 0, < 1.2.4-1.1+deb11u1

CVSS 分數

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-25068