CVE-2021-45909

HIGH

gif2apng 1.9 - Heap-Based Buffer Overflow in DecodeLZW Function

Title source: llm

Description

An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function. It allows an attacker to write a large amount of arbitrary data outside the boundaries of a buffer.

References (2)

Core 2

Core References

Exploit, Issue Tracking, Mailing List, Third Party Advisory x_refsource_misc

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002668

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2022/03/msg00008.html

Scores

CVSS v3 7.8

EPSS 0.0087

EPSS Percentile 54.3%

Attack Vector LOCAL

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

Details

CWE

CWE-787

Status published

Products (2)

debian/debian_linux 9.0

gif2apng_project/gif2apng 1.9

Published Dec 28, 2021

Tracked Since Feb 18, 2026