CVE-2022-1271

moderate-risk

Published 2022-08-31

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.

Do I need to act?

0.81% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.8/10 High

NETWORK / LOW complexity

Affected Products (4)

Gzip

Jboss Data Grid

Debian Linux

Affected Vendors

Debian Redhat Gnu Tukaani

References (18)

Third Party Advisory https://access.redhat.com/security/cve/CVE-2022-1271

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2073310

Broken Link https://git.tukaani.org/?p=xz.git%3Ba=commit%3Bh=69d1b3fc29677af8ade8dc15dba83f0...

Mailing List https://lists.gnu.org/r/bug-gzip/2022-04/msg00011.html

Third Party Advisory https://security-tracker.debian.org/tracker/CVE-2022-1271

Third Party Advisory https://security.gentoo.org/glsa/202209-01

Third Party Advisory https://security.netapp.com/advisory/ntap-20220930-0006/

Patch https://tukaani.org/xz/xzgrep-ZDI-CAN-16587.patch

Mailing List https://www.openwall.com/lists/oss-security/2022/04/07/8