From koon@gentoo.org Sun Nov 13 12:50:34 2005 From: Thierry Carrez To: gentoo-announce@lists.gentoo.org Cc: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com, security-alerts@linuxsecurity.com Date: Sun, 13 Nov 2005 18:48:32 +0100 Subject: [Full-disclosure] [ GLSA 200511-11 ] linux-ftpd-ssl: Remote buffer overflow - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200511-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: linux-ftpd-ssl: Remote buffer overflow Date: November 13, 2005 Bugs: #111573 ID: 200511-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A buffer overflow vulnerability has been found, allowing a remote attacker to execute arbitrary code with escalated privileges on the local system. Background ========== linux-ftpd-ssl is the netkit FTP server with encryption support. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-ftp/ftpd < 0.17-r3 >= 0.17-r3 Description =========== A buffer overflow vulnerability has been found in the linux-ftpd-ssl package. A command that generates an excessively long response from the server may overrun a stack buffer. Impact ====== An attacker that has permission to create directories that are accessible via the FTP server could exploit this vulnerability. Successful exploitation would execute arbitrary code on the local machine with root privileges. Workaround ========== There is no known workaround at this time. Resolution ========== All ftpd users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-ftp/ftpd-0.17-r3" References ========== [ 1 ] CVE-2005-3524 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3524 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200511-11.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 2005 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/2.0 [ Part 1.2, "OpenPGP digital signature" Application/PGP-SIGNATURE ] [ 264bytes. ] [ Unable to print this part. ] [ Part 2: "Attached Text" ] _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/