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X.Org: Heap overflow in pixmap allocation


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200509-07 / X.Org
Release Date September 12, 2005
Latest Revision September 12, 2005: 01
Impact high
Exploitable local
Package Vulnerable versions Unaffected versions Architecture(s)
x11-base/xorg-x11 < 6.8.2-r3 >= 6.8.2-r3 All supported architectures

Related bugreports: #105688


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

2.  Impact Information


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


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


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

3.  Resolution Information


There is no known workaround at this time.


All users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4.  References


Page updated September 12, 2005

Summary: This is a Gentoo Linux Security Advisory

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