CVE-2019-6977

High

Description

gdImageColorMatch in gd_color_match.c in the GD Graphics Library (aka LibGD) 2.2.5, as used in the imagecolormatch function in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1, has a heap-based buffer overflow. This can be exploited by an attacker who is able to trigger imagecolormatch calls with crafted image data.

SeverityHigh

CVSS8.8

Exploit probability—

Product

Libgd

PublishedJan 27, 2019

First seenJan 27, 2019

How to fix

Update

php php5.6.40, 7.1.26, 7.2.14 or later

Vendor advisories

Affected products

Product	Affected versions	Fixed in
libgd libgd	2.2.5	—
php php	v < 5.6.40, 7.0.0 ≤ v < 7.1.26, 7.2.0 ≤ v < 7.2.14, 7.3.0	5.6.40, 7.1.26, 7.2.14
debian debian_linux	8.0, 9.0	—
canonical ubuntu_linux	14.04, 16.04, 18.04, 18.10	—
netapp storage_automation_store	No range specified	—

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