CVE-2021-40633

HIGH

giflib <5.1.4 - Memory Corruption

Title source: llm

Description

A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format file.

References (1)

[Exploit, Issue Tracking, Third Party Advisory] https://sourceforge.net/p/giflib/bugs/157/

Scores

CVSS v3 8.8

EPSS 0.0081

EPSS Percentile 74.0%

Attack Vector NETWORK

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

Classification

CWE

CWE-401

Status published

Affected Products (1)

giflib_project/giflib

Timeline

Published Jun 14, 2022

Tracked Since Feb 18, 2026