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X.Org X11 library: Multiple integer overflows


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200705-06 / libx11
Release Date May 05, 2007
Latest Revision May 05, 2007: 01
Impact high
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
x11-libs/libX11 < 1.0.3-r2 >= 1.0.3-r2 All supported architectures

Related bugreports: #172752


The X.Org X11 library contains multiple integer overflows, which could lead to the execution of arbitrary code.

2.  Impact Information


X.Org is an implementation of the X Window System. The X.Org X11 library provides the X11 protocol library files.


Multiple integer overflows have been reported in the XGetPixel() function of the X.Org X11 library.


By enticing a user to open a specially crafted image, an attacker could cause a Denial of Service or an integer overflow, potentially resulting in the execution of arbitrary code with root privileges.

3.  Resolution Information


There is no known workaround at this time.


All X.Org X11 library users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/libX11-1.0.3-r2"

4.  References


Page updated May 05, 2007

Summary: This is a Gentoo Linux Security Advisory

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