CVE-2022-34266

Name: CVE-2022-34266
Creator: NVD / NIST
Published: 2022-07-19T20:15:11.367+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2022-34266 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The libtiff-4.0.3-35.amzn2.0.1 package for LibTIFF on Amazon Linux 2 allows attackers to cause a denial of service (application crash), a different vulnerability than CVE-2022-0562. When processing a malicious TIFF file, an invalid range may be passed as an argument to the memset() function within TIFFFetchStripThing() in tif_dirread.c. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

The libtiff-4.0.3-35.amzn2.0.1 package for LibTIFF on Amazon Linux 2 allows attackers to cause a denial of service (application crash), a different vulnerability than CVE-2022-0562. When processing a malicious TIFF file, an invalid range may be passed as an argument to the memset() function within TIFFFetchStripThing() in tif_dirread.c. This will cause TIFFFetchStripThing() to segfault after use of an uninitialized resource.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.25%

16.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-908

Affected Software

Vendor	Product	Versions
Libtiff	Libtiff	4.0.3-35

References

https://alas.aws.amazon.com/AL2/ALAS-2022-1814.htmlMitigation, Third Party Advisory
https://bugs.gentoo.org/859433Third Party Advisory
https://alas.aws.amazon.com/AL2/ALAS-2022-1814.htmlMitigation, Third Party Advisory
https://bugs.gentoo.org/859433Third Party Advisory

Timeline

Published: Jul 19, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-34266?

How severe is CVE-2022-34266?

CVE-2022-34266 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2022-34266?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-34266?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST