CVE-2021-4156

描述

An out-of-bounds read flaw was found in libsndfile's FLAC codec functionality. An attacker who is able to submit a specially crafted file (via tricking a user to open or otherwise) to an application linked with libsndfile and using the FLAC codec, could trigger an out-of-bounds read that would most likely cause a crash but could potentially leak memory information that could be used in further exploitation of other flaws.

如何修補 CVE-2021-4156

要修補 CVE-2021-4156,請將受影響套件升級到下列已修補版本。

• —升級至 1.0.31-2+deb11u2 或更新版本
• —升級至 1.0.28-6+deb10u2 或更新版本
• —升級至 1.0.31-2+deb11u2 或更新版本

CVE-2021-4156 正在被利用嗎?

低 — EPSS 為 0.1%,目前沒有觀察到大規模利用活動。

受影響套件(3)

• from 0, < 1.0.31-2+deb11u2
• from 0, < 1.0.28-6+deb10u2
• from 0, < 1.0.31-2+deb11u2

CVSS 分數

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-4156