CVE-2023-2731: Fedoraproject Fedora

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

A NULL pointer dereference flaw was found in Libtiff's LZWDecode() function in the libtiff/tif_lzw.c file. This flaw allows a local attacker to craft specific input data that can cause the program to dereference a NULL pointer when decompressing a TIFF format file, resulting in a program crash or denial of service.

Affected products

• Fedoraproject Fedora: version 38 only
• Libtiff Libtiff: before 4.5.0 (fixed in 4.5.0)
• Red Hat Enterprise Linux: version 9.0 only

Published 2023-05-17. Last modified 2026-06-17.