CVE-2015-7802

Publication date 12 October 2015

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

gifread.c in gif2png, as used in OptiPNG before 0.7.6, allows remote attackers to cause a denial of service (uninitialized memory read) via a crafted GIF file.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
optipng	15.10 wily	Fixed 0.7.5-1ubuntu0.1
	15.04 vivid	Ignored end of life
	14.04 LTS trusty	Fixed 0.6.4-1ubuntu0.14.04.1
	12.04 LTS precise	Fixed 0.6.4-1ubuntu0.12.04.1

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.5 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	5.5 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-2951-1
OptiPNG vulnerabilities
18 April 2016