GLSA 200509-07: X.Org: Heap overflow in pixmap allocation

http://security.gentoo.org/

Severity:	high
Title:	X.Org: Heap overflow in pixmap allocation
Date:	09/12/2005
Bugs:	#105688
ID:	200509-07

Synopsis

An integer overflow in pixmap memory allocation potentially allows any X.Org user to execute arbitrary code with elevated privileges.

Background

X.Org is X.Org Foundation's Public Implementation of the X Window System.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
x11-base/xorg-x11	< 6.8.2-r3	>= 6.8.2-r3	All supported architectures

Description

X.Org is missing an integer overflow check during pixmap memory allocation.

Impact

An X.Org user could exploit this issue to make the X server execute arbitrary code with elevated privileges.

Workaround

There is no known workaround at this time.

Resolution

All X.org users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-base/xorg-x11-6.8.2-r3"

References

CAN-2005-2495

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200509-07.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.