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[ GLSA 200410-01 ] sharutils: Buffer overflows in shar.c and unshar.c
From: Thierry Carrez <koon () gentoo org>
Date: Fri, 01 Oct 2004 14:09:14 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200410-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: sharutils: Buffer overflows in shar.c and unshar.c Date: October 01, 2004 Bugs: #65773 ID: 200410-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== sharutils contains two buffer overflow vulnerabilities that could lead to arbitrary code execution. Background ========== sharutils contains utilities to manage shell archives. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/sharutils <= 4.2.1-r9 >= 4.2.1-r10 Description =========== sharutils contains two buffer overflows. Ulf Harnhammar discovered a buffer overflow in shar.c, where the length of data returned by the wc command is not checked. Florian Schilhabel discovered another buffer overflow in unshar.c. Impact ====== An attacker could exploit these vulnerabilities to execute arbitrary code as the user running one of the sharutils programs. Workaround ========== There is no known workaround at this time. Resolution ========== All sharutils users should upgrade to the latest version: # emerge sync # emerge -pv ">=app-arch/sharutils-4.2.1-r10" # emerge ">=app-arch/sharutils-4.2.1-r10" References ========== [ 1 ] Debian Bug #265904 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=265904 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200410-01.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 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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- [ GLSA 200410-01 ] sharutils: Buffer overflows in shar.c and unshar.c Thierry Carrez (Oct 01)