Bugtraq mailing list archives
[ GLSA 201111-06 ] MaraDNS: Arbitrary code execution
From: Alex Legler <a3li () gentoo org>
Date: Sun, 20 Nov 2011 19:12:54 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201111-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: MaraDNS: Arbitrary code execution Date: November 20, 2011 Bugs: #352569 ID: 201111-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A buffer overflow vulnerability in MaraDNS allows remote attackers to execute arbitrary code or cause a Denial of Service. Background ========== MaraDNS is a proxy DNS server with permanent caching. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dns/maradns < 1.4.06 >= 1.4.06 Description =========== A long DNS hostname with a large number of labels could trigger a buffer overflow in the compress_add_dlabel_points() function of dns/Compress.c. Impact ====== A remote unauthenticated attacker could execute arbitrary code or cause a Denial of Service. Workaround ========== There is no known workaround at this time. Resolution ========== All MaraDNS users should upgrade to the latest stable version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/maradns-1.4.06" NOTE: This is a legacy GLSA. Updates for all affected architectures are available since February 12, 2011. It is likely that your system is already no longer affected by this issue. References ========== [ 1 ] CVE-2011-0520 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0520 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201111-06.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 https://bugs.gentoo.org. License ======= Copyright 2011 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/2.5
Attachment:
signature.asc
Description: This is a digitally signed message part.
Current thread:
- [ GLSA 201111-06 ] MaraDNS: Arbitrary code execution Alex Legler (Nov 21)