X.Org: Heap overflow in pixmap allocation

1. Gentoo Linux Security Advisory

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 X.org 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

Updated September 12, 2005

Summary: This is a Gentoo Linux Security Advisory

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