From vorlon@gentoo.org Tue Mar 21 15:41:35 2006 From: Matthias Geerdsen To: gentoo-announce@lists.gentoo.org Cc: full-disclosure@lists.grok.org.uk, bugtraq@securityfocus.com, security-alerts@linuxsecurity.com Date: Tue, 21 Mar 2006 21:42:05 +0100 Subject: [Full-disclosure] [ GLSA 200603-19 ] cURL/libcurl: Buffer overflow in the handling of TFTP URLs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200603-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: cURL/libcurl: Buffer overflow in the handling of TFTP URLs Date: March 21, 2006 Bugs: #125766 ID: 200603-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== libcurl is affected by a buffer overflow in the handling of URLs for the TFTP protocol, which could be exploited to compromise a user's system. Background ========== cURL is a command line tool for transferring files with URL syntax, supporting numerous protocols. libcurl is the corresponding client-side library. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/curl < 7.15.3 *>= 7.15.1-r1 >= 7.15.3 <= 7.14.1 Description =========== Ulf Harnhammar reported a possible buffer overflow in the handling of TFTP URLs in libcurl due to the lack of boundary checks. Impact ====== An attacker could exploit this vulnerability to compromise a user's system by enticing the user to request a malicious URL with cURL/libcurl or to use a HTTP server redirecting to a malicious TFTP URL. Workaround ========== There is no known workaround at this time. Resolution ========== All cURL users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/curl-7.15.1-r1" References ========== [ 1 ] Project cURL Security Advisory, March 20th 2006 http://curl.haxx.se/docs/adv_20060320.html [ 2 ] CVE-2006-1061 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1061 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200603-19.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 2006 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 ] [ 266bytes. ] [ 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/