What’s Vulnerable › Vulnerabilities

CVE-2021-45909

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-12-28 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• Debian Linux: 9.0
• Gif2Apng Project Gif2Apng: 1.9

References

• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002668
• https://lists.debian.org/debian-lts-announce/2022/03/msg00008.html
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002668
• https://lists.debian.org/debian-lts-announce/2022/03/msg00008.html

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