- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200409-34 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: X.org, XFree86: Integer and stack overflows in libXpm Date: September 27, 2004 Bugs: #64152 ID: 200409-34 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== 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. Background ========== XFree86 and X.org are both implementations of the X Window System. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-base/xorg-x11 < 6.7.0-r2 *>= 6.7.0-r2 == 6.8.0 >= 6.8.0-r1 2 x11-base/xfree < 4.3.0-r7 >= 4.3.0-r7 ------------------------------------------------------------------- # Package 2 [x11-base/xfree] only applies to ALPHA and x86 users. NOTE: Any packages listed without architecture tags apply to all architectures... ------------------------------------------------------------------- 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. ------------------------------------------------------------------- 2 affected packages ------------------------------------------------------------------- Description =========== 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 libXpm. Impact ====== 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. Workaround ========== There is no known workaround at this time. Resolution ========== All X.org users should upgrade to the latest version: # 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: # 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. References ========== [ 1 ] X.org Security Advisory http://freedesktop.org/pipermail/xorg/2004-September/003196.html [ 2 ] X11R6.8.1 Release Notes http://freedesktop.org/pipermail/xorg/2004-September/003172.html [ 3 ] CAN-2004-0687 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0687 [ 4 ] CAN-2004-0688 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0688 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200409-34.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@xxxxxxxxxx or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2004 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/1.0
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