# CVE-2022-1271

## Summary

- **CVE ID:** CVE-2022-1271
- **Severity:** UNKNOWN
- **CVSS Score:** 0.03
- **CWE:** CWE-179
- **Published:** Aug 31, 2022
- **Last Modified:** Mar 13, 2026

## 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 Products

- n/a — gzip, xz-utils (Fixed in gzip 1.12)

## References

- [CNA](https://bugzilla.redhat.com/show_bug.cgi?id=2073310)
- [CNA](https://www.openwall.com/lists/oss-security/2022/04/07/8)
- [CNA](https://lists.gnu.org/r/bug-gzip/2022-04/msg00011.html)
- [CNA](https://tukaani.org/xz/xzgrep-ZDI-CAN-16587.patch)
- [CNA](https://git.tukaani.org/?p=xz.git%3Ba=commit%3Bh=69d1b3fc29677af8ade8dc15dba83f0589cb63d6)
- [CNA](https://security-tracker.debian.org/tracker/CVE-2022-1271)
- [CNA](https://access.redhat.com/security/cve/CVE-2022-1271)
- [CNA](https://security.gentoo.org/glsa/202209-01)
- [CNA](https://security.netapp.com/advisory/ntap-20220930-0006/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.81%
- **EPSS Percentile:** 73.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._