CVE-2022-0891 Memory corruption in libtiff
Attackers can trigger heap buffer overflows via crafted TIFF files, causing crashes or information disclosure in applications using libtiff.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-0891?
CVE-2022-0891 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 9 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A heap buffer overflow in ExtractImageSection function in tiffcrop.c in libtiff library Version 4.3.0 allows attacker to trigger unsafe or out of bounds memory access via crafted TIFF image file which could result into application crash, potential information disclosure or any other context-dependent impact
Weakness: CWE-787
Which versions are affected by CVE-2022-0891?
It affects 4 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Libtiff Libtiff, Netapp Active Iq Unified Manager.
How do I fix CVE-2022-0891?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-0891 being exploited?
There is no known exploitation of CVE-2022-0891 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2022-0891, AZL-8968, DEBIAN-CVE-2022-0891, GHSA-ppwc-w499-gfmh, JLSEC-2025-263, OESA-2022-1594 and 1 more.