CVE-2023-30775 Memory corruption in libtiff

Medium 5.5 Published 19 May 2023 Updated 21 Jan 2025

A heap buffer overflow in libtiff allows attackers to execute arbitrary code or cause denial of service via crafted TIFF files.

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-2023-30775?

CVE-2023-30775 is a medium-severity memory corruption vulnerability in Libtiff Libtiff, published on 19 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was found in the libtiff library. This security flaw causes a heap buffer overflow in extractContigSamples32bits, tiffcrop.c.

Weakness: CWE-787, CWE-119

Which versions are affected by CVE-2023-30775?

It affects 1 product.

Products include Libtiff Libtiff.

How do I fix CVE-2023-30775?

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-2023-30775 being exploited?

There is no known exploitation of CVE-2023-30775 in the wild and no public exploit code.

All Libtiff Libtiff vulnerabilities

Sources

Also known as BELL-CVE-2023-30775, DEBIAN-CVE-2023-30775, GHSA-jqmx-w3fp-9j6j, JLSEC-2025-304, UBUNTU-CVE-2023-30775.