CVE-2016-6128

Publication date 30 June 2016

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

The gdImageCropThreshold function in gd_crop.c in the GD Graphics Library (aka libgd) before 2.2.3, as used in PHP before 7.0.9, allows remote attackers to cause a denial of service (application crash) via an invalid color index.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libgd2	16.04 LTS xenial	Fixed 2.1.1-4ubuntu0.16.04.2
	15.10 wily	Fixed 2.1.1-4ubuntu0.15.10.2
	14.04 LTS trusty	Fixed 2.1.0-3ubuntu0.2
	12.04 LTS precise	Not affected
php5	16.04 LTS xenial	Not in release
	15.10 wily	Not affected
	14.04 LTS trusty	Not affected
	12.04 LTS precise	Not affected
php7.0	16.04 LTS xenial	Not affected
	15.10 wily	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release

Notes

mdeslaur

php uses the system libgd2 introduced in 2.1.0

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libgd2	Upstream: https://github.com/libgd/libgd/compare/3fe0a7128bac5000fdcfab888bd2a75ec0c9447d...fd623025505e87bba7ec8555eeb72dae4fb0afd

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H