Vulnerability Database

319,703

Total vulnerabilities in the database

CVE-2021-45909

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.

  • Published: Dec 28, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-45909
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.8
  • AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.8
  • AV:N/AC:M/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
gif2apng_project / gif2apng 1.9 1.9.x
debian / debian_linux 9.0 9.0.x