-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-2363-1 security@xxxxxxxxxx http://www.debian.org/security/ Moritz Muehlenhoff December 16, 2011 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : tor Vulnerability : buffer overflow Problem type : remote Debian-specific: no CVE ID : CVE-2011-2778 It was discovered that Tor, an online privacy tool, incorrectly computes buffer sizes in certain cases involving SOCKS connections. Malicious parties could use this to cause a heap-based buffer overflow, potentially allowing execution of arbitrary code. In Tor's default configuration this issue can only be triggered by clients that can connect to Tor's socks port, which listens only on localhost by default. In non-default configurations where Tor's SocksPort listens not only on localhost or where Tor was configured to use another socks server for all of its outgoing connections, Tor is vulnerable to a larger set of malicious parties. For the oldstable distribution (lenny), this problem has been fixed in version 0.2.1.32-1. For the stable distribution (squeeze), this problem has been fixed in version 0.2.2.35-1~squeeze+1. For the unstable and testing distributions, this problem has been fixed in version 0.2.2.35-1. For the experimental distribution, this problem has has fixed in version 0.2.3.10-alpha-1. We recommend that you upgrade your tor packages. Please note that the update for stable (squeeze) updates this package from 0.2.1.31 to 0.2.2.35, a new major release of Tor, as upstream has announced end-of-life for the 0.2.1.x tree for the near future. Please check your Tor runs as expected after the upgrade. 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@xxxxxxxxxxxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk7rfqsACgkQXm3vHE4uyloNFgCg13uxeX7ZD6ObLY/8N2qHrWQj LUwAn3Yz04t0OxRDRmASSh/4DiIgsySi =uuXX -----END PGP SIGNATURE-----
