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Gentoo: GLSA-200405-12 Critical: CVS Heap Overflow Risk Analysis

CVS is subject to a heap overflow vulnerability allowing source repository compromise.. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200405-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: CVS heap overflow vulnerability Date: May 20, 2004 Bugs: #51460 ID: 200405-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= CVS is subject to a heap overflow vulnerability allowing source repository compromise. Background ========= CVS (Concurrent Versions System) is an open-source network-transparent version control system. It contains both a client utility and a server. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-util/cvs = 1.11.16 Description ========== Stefan Esser discovered a heap overflow in the CVS server, which can be triggered by sending malicious "Entry" lines and manipulating the flags related to that Entry. This vulnerability was proven to be exploitable. Impact ===== A remote attacker can execute arbitrary code on the CVS server, with the rights of the CVS server. By default, Gentoo uses the "cvs" user to run the CVS server. In particular, this flaw allows a complete compromise of CVS source repositories. If you're not running a server, then you are not vulnerable. Workaround ========= There is no known workaround at this time. All users are advised to upgrade to the latest available version of CVS. Resolution ========= All users running a CVS server should upgrade to the lateststable version: # emerge sync # emerge -pv "> =dev-util/cvs-1.11.16" # emerge "> =dev-util/cvs-1.11.16" References ========= [ 1 ] E-matters advisory 07/2004 [ 2 ] CAN-2004-0396 https://www.cve.org/CVERecord?id=CAN-2004-0396 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200405-12 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 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 Technologies, 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/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - iD8DBQFArPYsvcL1obalX08RAra6AJ9y2fOFXOehlVb5V1VqX7ApBinrCQCglDIo 12HXNH7oaV2/olRemjT+Uq4=SFp9 -----END PGP SIGNATURE----- . Debian bulletin DSA-2023-12 highlights a critical OpenSSH vulnerability. Update to the patched release promptly to prevent unauthorized access.. Gentoo CVS Security, Heap Overflow Risk, Source Repository Threat. . Severity: Critical. LinuxSecurity.com Team

May 20, 2004 •Critical Gentoo