CVE-2022-1271: Gnu Gzip vulnerability (CVSS 8.8)

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredLow

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Gnu Gzip< 1.12

Redhat Jboss Data Grid7.0.0

Tukaani Xz< 5.2.5

Debian Linux10.0

Remediation

Fixed in

Gnu Gzip≥ 1.12

Tukaani Xz≥ 5.2.5

Patch & vendor advisories

References

https://access.redhat.com/security/cve/CVE-2022-1271Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2073310Issue TrackingThird Party Advisory
https://git.tukaani.org/?p=xz.git%3Ba=commit%3Bh=69d1b3fc29677af8ade8dc15dba83f0589cb63d6Broken Link
https://lists.gnu.org/r/bug-gzip/2022-04/msg00011.htmlMailing ListPatchVendor Advisory
https://security.gentoo.org/glsa/202209-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20220930-0006/Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2022-1271Third Party Advisory
https://tukaani.org/xz/xzgrep-ZDI-CAN-16587.patchPatchThird Party Advisory
https://www.openwall.com/lists/oss-security/2022/04/07/8Mailing ListPatchThird Party Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2022-1271 being actively exploited?

CVE-2022-1271 is not in the CISA KEV catalog. Its EPSS exploit probability is 5.07%.

How severe is CVE-2022-1271?

CVE-2022-1271 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 5.07% probability of exploitation.

Which products are affected by CVE-2022-1271?

Affected products include Gnu Gzip, Redhat Jboss Data Grid, Tukaani Xz, Debian Linux.

How do I fix CVE-2022-1271?

Upgrade affected software to a fixed version, for example Gnu Gzip 1.12, Tukaani Xz 5.2.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-1271 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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