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Gentoo: 200409-34 Normal: Integer And Stack Overflows In LibXpm

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. [More...]. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200409-34 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://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 isdeprecated 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 https://lists.freedesktop.org/pipermail/xorg/2004-September/003196.html [ 2 ] X11R6.8.1 Release Notes https://lists.freedesktop.org/pipermail/xorg/2004-September/003172.html [ 3 ] CAN-2004-0687 [ 4 ] CAN-2004-0688 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200409-34 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuringthe confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://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. https://creativecommons.org/licenses/by-sa/1.0/ . LibXpm is vulnerable to integer and stack overflows, allowing attackers to execute arbitrary code on X.org and XFree86 systems. Update software to mitigate these risks. libXpm, Gentoo, Stack Overflow, X Window System. . LinuxSecurity.com Team

Sep 27, 2004 Gentoo