CVE-2016-3981

Publication date 13 April 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Heap-based buffer overflow in the bmp_read_rows function in pngxrbmp.c in OptiPNG before 0.7.6 allows remote attackers to cause a denial of service (out-of-bounds read or write access and crash) or possibly execute arbitrary code via a crafted image file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
optipng	15.10 wily	Fixed 0.7.5-1ubuntu0.1
	14.04 LTS trusty	Fixed 0.6.4-1ubuntu0.14.04.1
	12.04 LTS precise	Fixed 0.6.4-1ubuntu0.12.04.1

Notes

tyhicks

verified that 14.04 through 15.10 are affected via valgrind and the reproducer from bugs.fi

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-2951-1
OptiPNG vulnerabilities
18 April 2016