Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2007.1058 -- [UNIX/Linux] Denial of Service vulnerability has been discovered in Syslog-ng 31 December 2007 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: syslog-ng Publisher: Gentoo Operating System: UNIX variants (UNIX, Linux, OSX) Impact: Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2007-6437 Original Bulletin: http://security.gentoo.org/glsa/glsa-200712-19.xml Comment: This advisory references vulnerabilities in products which run on platforms other than Gentoo. It is recommended that administrators running syslog-ng check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200712-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Syslog-ng: Denial of Service Date: December 29, 2007 Bugs: #202718 ID: 200712-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A Denial of Service vulnerability has been discovered in Syslog-ng. Background ========== Syslog-ng is a flexible and scalable system logger. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-admin/syslog-ng < 2.0.6 >= 2.0.6 Description =========== Oriol Carreras reported a NULL pointer dereference in the log_msg_parse() function when processing timestamps without a terminating whitespace character. Impact ====== A remote attacker could send a specially crafted event to a vulnerable Syslog-ng server, resulting in a crash. Workaround ========== There is no known workaround at this time. Resolution ========== All Syslog-ng users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-admin/syslog-ng-2.0.6" References ========== [ 1 ] CVE-2007-6437 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6437 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200712-19.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 2007 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 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBR3hXpih9+71yA2DNAQJXJAP/QJohpyDKKKmRPX/pN2SpfelF0m4JFPXo vNoY8d/IYRTf8O4jMPSbBU+BIQIreEX5Y7W0I7vuHZqXu5SDi5c5aKV1mBkb5owJ rNpz/f30i+GEImqQ50cq1e+9lY1OShbBQuJcaI0cFP3CRJvGc8ErjZEIA92Z+XlJ wyi/zSnJaC4= =6NIB -----END PGP SIGNATURE-----