CVE-2023-2731

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

libtiff

CVSS v3.1 NVD

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

EPSS

0.43% chance of exploitation in the next 30 days, 36th percentile

Published

2023-05-17

Updated

2025-01-22

Proof-of-concept exploits (1)

• https://gitlab.com/libtiff/libtiff/-/issues/548

Security advisories

• https://access.redhat.com/security/cve/CVE-2023-2731
• https://bugzilla.redhat.com/show_bug.cgi?id=2207635
• libsdl-org/libtiff/commit/9be22b639ea69e102d3847dca4c53ef025e9527b

References

• CVE Record
• NVD entry