CVE-2022-1271
HIGH8.8EPSS 0.81%xz-utils - security update
Published: 8/31/2022Modified: 12/3/2025
Also known as:ALPINE-CVE-2022-1271
Description
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.
Affected packages (8)
- Alpine/gzipfrom 0, < 1.12-r0
- Alpine/xzfrom 0, < 5.2.5-r1
- Debian/gzipfrom 0, < 1.9-3+deb10u1
- Debian/gzipfrom 0, < 1.10-4+deb11u1
- Debian/gzipfrom 0, < 1.6-5+deb9u1
- Debian/xz-utilsfrom 0, < 5.2.4-1+deb10u1
- Debian/xz-utilsfrom 0, < 5.2.2-1.2+deb9u1
- Debian/xz-utilsfrom 0, < 5.2.5-2.1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |