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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0881 tor security update 14 September 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: tor Publisher: Debian Operating System: Debian GNU/Linux 6 UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Denial of Service -- Remote with User Interaction Access Confidential Data -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2012-4419 CVE-2012-3519 CVE-2012-3518 Original Bulletin: http://www.debian.org/security/2012/dsa-2548 Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running tor check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-2548-1 security@debian.org http://www.debian.org/security/ Moritz Muehlenhoff September 13, 2012 http://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : tor Vulnerability : several Problem type : remote Debian-specific: no CVE ID : CVE-2012-3518 CVE-2012-3519 CVE-2012-4419 Severel vulnerabilities have been discovered in Tor, an online privacy tool. CVE-2012-3518 Avoid an uninitialised memory read when reading a vote or consensus document that has an unrecognized flavour name. This could lead to a remote, resulting in denial of service. CVE-2012-3519 Try to leak less information about what relays a client is choosing to a side-channel attacker. CVE-2012-4419 By providing specially crafted date strings to a victim tor instance, an attacker can cause it to run into an assertion and shut down Additionally the update to stable includes the following fixes: - - - When waiting for a client to renegotiate, don't allow it to add any bytes to the input buffer. This fixes a potential DoS issue [tor-5934, tor-6007]. For the stable distribution (squeeze), these problems have been fixed in version 0.2.2.39-1. For the unstable distribution, these problems have been fixed in version 0.2.3.22-rc-1. We recommend that you upgrade your tor packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: http://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlBSMjQACgkQXm3vHE4uylq6wgCggMNGWPFQe8JxitNIDSJ7rxS9 87MAn0Z3TVgrowBSSb7iouq9E3Ty9ozG =zQL+ - -----END PGP SIGNATURE----- - --------------------------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. 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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 =========================================================================== 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). 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