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[ GLSA 200702-12 ] CHMlib: User-assisted remote execution of arbitrary code
From: Raphael Marichez <falco () gentoo org>
Date: Tue, 27 Feb 2007 16:23:51 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200702-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: CHMlib: User-assisted remote execution of arbitrary code Date: February 27, 2007 Bugs: #163989 ID: 200702-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A memory corruption vulnerability in CHMlib could lead to the remote execution of arbitrary code. Background ========== CHMlib is a library for the MS CHM (Compressed HTML) file format plus extracting and HTTP server utils. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-doc/chmlib < 0.39 >= 0.39 Description =========== When certain CHM files that contain tables and objects stored in pages are parsed by CHMlib, an unsanitized value is passed to the alloca() function resulting in a shift of the stack pointer to arbitrary memory locations. Impact ====== An attacker could entice a user to open a specially crafted CHM file, resulting in the execution of arbitrary code with the permissions of the user viewing the file. Workaround ========== There is no known workaround at this time. Resolution ========== All CHMlib users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-doc/chmlib-0.39" References ========== [ 1 ] Original Advisory http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=468 [ 2 ] CVE-2007-0619 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0619 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200702-12.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 () gentoo org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2007 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/2.5
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- [ GLSA 200702-12 ] CHMlib: User-assisted remote execution of arbitrary code Raphael Marichez (Feb 27)