-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3216-1 security@debian.org http://www.debian.org/security/ Moritz Muehlenhoff April 06, 2015 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : tor CVE ID : CVE-2015-2928 CVE-2015-2929 Several vulnerabilities have been discovered in Tor, a connection-based low-latency anonymous communication system: CVE-2015-2928 "disgleirio" discovered that a malicious client could trigger an assertion failure in a Tor instance providing a hidden service, thus rendering the service inaccessible. CVE-2015-2929 "DonnchaC" discovered that Tor clients would crash with an assertion failure upon parsing specially crafted hidden service descriptors. Introduction points would accept multiple INTRODUCE1 cells on one circuit, making it inexpensive for an attacker to overload a hidden service with introductions. Introduction points now no longer allow multiple cells of that type on the same circuit. For the stable distribution (wheezy), these problems have been fixed in version 0.2.4.27-1. For the unstable distribution (sid), these problems have been fixed in version 0.2.5.12-1. For the experimental distribution, these problems have been fixed in version 0.2.6.7-1. 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: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org