CVE-2023-43907

Publication date 1 October 2023

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

OptiPNG v0.7.7 was discovered to contain a global buffer overflow via the 'buffer' variable at gifread.c.

Denial of service only in command-line tool

Show unmaintained releases

Package	Ubuntu Release	Status
optipng	26.04 LTS resolute	Not affected
	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Ignored end of life, was deferred [2023-10-10]
	23.04 lunar	Ignored end of life, was deferred [2023-10-10]
	22.04 LTS jammy	Vulnerable
	20.04 LTS focal	Vulnerable
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Vulnerable
	14.04 LTS trusty	Ignored end of standard support

Can't reproduce with PoC on focal, jammy, and lunar. This is an out-of-bounds read in a command-line tool, unlikely to have any security impact.

CVSS version: CVSS v3.0

Base score 7.8 · High

Base metrics

Scores

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