[ GLSA 201006-16 ] GD: User-assisted execution of arbitrary code

[GLSA]

Gentoo Linux Security Advisory

Title: GD: User-assisted execution of arbitrary code (GLSA 201006-16)
Severity: normal
Exploitable: remote
Date: June 03, 2010
Bug(s): #292130
ID: 201006-16

Synopsis


The GD library is prone to a buffer overflow vulnerability.


Background


GD is a graphic library for fast image creation.


Affected Packages

Package: media-libs/gd
Vulnerable: < 2.0.35-r1
Unaffected: >= 2.0.35-r1
Architectures: All supported architectures


Description


Tomas Hoger reported that the _gdGetColors() function in gd_gd.c does
not properly verify the colorsTotal struct member, possibly leading to
a buffer overflow.


Impact


A remote attacker could entice a user to open a specially crafted image
file with a program using the GD library, possibly resulting in the
remote execution of arbitrary code with the privileges of the user
running the application, or a Denial of Service condition.


Workaround


There is no known workaround at this time.


Resolution


All GD users should upgrade to the latest version: