CVE-2022-36227

描述

In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the code-execution impact: "In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution."

如何修補 CVE-2022-36227

要修補 CVE-2022-36227,請將受影響套件升級到下列已修補版本。

• —升級至 3.5.3-r1 或更新版本

CVE-2022-36227 正在被利用嗎?

低 — EPSS 為 1.9%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 3.0.0, < 3.5.3-r1

CVSS 分數

參考連結(1)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2022-36227