CVE-2023-0796 Denial of service in libtiff
Attackers can cause a denial of service via a crafted TIFF file due to an out-of-bounds read in LibTIFF's tiffcrop tool.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-0796?
CVE-2023-0796 is a medium-severity denial of service vulnerability in Libtiff Libtiff, published on 13 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
LibTIFF 4.4.0 has an out-of-bounds read in tiffcrop in tools/tiffcrop.c:3592, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit afaabc3e.
Weakness: CWE-125
Which versions are affected by CVE-2023-0796?
It affects 1 product.
Products include Libtiff Libtiff.
How do I fix CVE-2023-0796?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-0796 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0796 exists.
Other vulnerabilities in Libtiff Libtiff
Sources
Also known as ALPINE-CVE-2023-0796, AZL-13390, DEBIAN-CVE-2023-0796, GHSA-m222-cmhp-v9m7, JLSEC-2025-291, UBUNTU-CVE-2023-0796.