X.org, XFree86: Integer and stack overflows in libXpm
Gentoo Linux Security Advisory
||GLSA 200409-34 / X
||September 27, 2004
||May 27, 2006: 02
All supported architectures
||amd64 hppa ia64 mips ppc sparc
libXpm, the X Pixmap library that is a part of the X Window System,
contains multiple stack and integer overflows that may allow a
carefully-crafted XPM file to crash applications linked against libXpm,
potentially allowing the execution of arbitrary code.
XFree86 and X.org are both implementations of the X Window System.
Chris Evans has discovered multiple integer and stack overflow
vulnerabilities in the X Pixmap library, libXpm, which is a part of the
X Window System. These overflows can be exploited by the execution of a
malicious XPM file, which can crash applications that are dependent on
A carefully-crafted XPM file could crash applications that are linked
against libXpm, potentially allowing the execution of arbitrary code
with the privileges of the user running the application.
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 -pv ">=x11-base/xorg-x11-6.7.0-r2"
# emerge ">=x11-base/xorg-x11-6.7.0-r2"
All XFree86 users should upgrade to the latest version:
Code Listing 3.2: Resolution
# emerge sync
# emerge -pv ">=x11-base/xfree-4.3.0-r7"
# emerge ">=x11-base/xfree-4.3.0-r7"
Note: Usage of XFree86 is deprecated on the AMD64, HPPA, IA64, MIPS,
PPC and SPARC architectures: XFree86 users on those architectures
should switch to X.org rather than upgrading XFree86.