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

The GD library is prone to a buffer overflow vulnerability.

Affected Packages

media-libs/gd on all architectures
Affected versions < 2.0.35-r1
Unaffected versions >= 2.0.35-r1

Background

GD is a graphic library for fast image creation.

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:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-libs/gd-2.0.35-r1"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since November 21, 2009. It is likely that your system is already no longer affected by this issue.

References

Release Date
June 03, 2010

Latest Revision
June 03, 2010: 01

Severity
normal

Exploitable
remote

Bugzilla entries