CVE-2022-1271

描述

An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.

如何修補 CVE-2022-1271

要修補 CVE-2022-1271,請將受影響套件升級到下列已修補版本。

• —升級至 1.12-r0 或更新版本
• —升級至 5.2.5-r1 或更新版本
• —升級至 1.10-4+deb11u1 或更新版本
• —升級至 1.6-5+deb9u1 或更新版本
• —升級至 1.9-3+deb10u1 或更新版本
• —升級至 5.2.5-2.1~deb11u1 或更新版本
• —升級至 5.2.2-1.2+deb9u1 或更新版本
• —升級至 5.2.4-1+deb10u1 或更新版本

CVE-2022-1271 正在被利用嗎?

低 — EPSS 為 4.3%,目前沒有觀察到大規模利用活動。

受影響套件(8)

• from 0, < 1.12-r0
• from 0, < 5.2.5-r1
• from 0, < 1.10-4+deb11u1
• from 0, < 1.6-5+deb9u1
• from 0, < 1.9-3+deb10u1
• from 0, < 5.2.5-2.1~deb11u1
• from 0, < 5.2.2-1.2+deb9u1
• from 0, < 5.2.4-1+deb10u1

CVSS 分數

參考連結(2)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2022-1271
• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2022-1271