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Gentoo: GLSA-201311-11 Normal: CTorrent Remote Code Execute Threat

A stack-based buffer overflow in CTorrent might allow a remote attacker to execute arbitrary code or cause a Denial of Service condition.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201311-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: CTorrent: User-assisted arbitrary code execution Date: November 20, 2013 Bugs: #266953 ID: 201311-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= A stack-based buffer overflow in CTorrent might allow a remote attacker to execute arbitrary code or cause a Denial of Service condition. Background ========= CTorrent is a BitTorrent client implemented in C++ to be lightweight and quick. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-p2p/ctorrent < 3.3.2-r1 > = 3.3.2-r1 Description ========== CTorrent contains a stack-based buffer overflow in the btFiles::BuildFromMI function in trunk/btfiles.cpp. Impact ===== A remote attacker could entice a user to open a specially crafted torrent file using CTorrent, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Workaround ========= There is no known workaround at this time. Resolution ========= All CTorrent users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =net-p2p/ctorren-3.3.2-r1" References ========= [ 1 ] CVE-2009-1759 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-1759 Availability =========== This GLSA and anyupdates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201311-11 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 2013 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/2.5/ . A critical vulnerability in CTorrent exposes Gentoo users to a remote code execution threat via a stack-based buffer overflow. Users are strongly urged to apply updates immediately.. CTorrent Update, Buffer Overflow, Gentoo Advisory, Security Patch. . LinuxSecurity.com Team

Nov 20, 2013 Gentoo