CVE-2021-36159

描述

libfetch before 2021-07-26, as used in apk-tools, xbps, and other products, mishandles numeric strings for the FTP and HTTP protocols. The FTP passive mode implementation allows an out-of-bounds read because strtol is used to parse the relevant numbers into address bytes. It does not check if the line ends prematurely. If it does, the for-loop condition checks for the '\0' terminator one byte too late.

如何修補 CVE-2021-36159

要修補 CVE-2021-36159,請將受影響套件升級到下列已修補版本。

• —升級至 2.10.7-r0 或更新版本

CVE-2021-36159 正在被利用嗎?

低 — EPSS 為 2.6%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 2.10.7-r0

CVSS 分數

參考連結(1)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2021-36159