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<patchinfo> <issue id="889688" tracker="bnc">CVE-2014-5117: Tor 0.2.4.23 fixes RELAY_EARLY issue</issue> <issue id="CVE-2014-5117" tracker="cve" /> <category>security</category> <rating>moderate</rating> <packager>AndreasStieger</packager> <description>- Tor 0.2.4.23 [bnc#889688] [CVE-2014-5117] Slows down the risk from guard rotation and backports several important fixes from the Tor 0.2.5 alpha release series. - Major features: - Clients now look at the "usecreatefast" consensus parameter to decide whether to use CREATE_FAST or CREATE cells for the first hop of their circuit. This approach can improve security on connections where Tor's circuit handshake is stronger than the available TLS connection security levels, but the tradeoff is more computational load on guard relays. - Make the number of entry guards configurable via a new NumEntryGuards consensus parameter, and the number of directory guards configurable via a new NumDirectoryGuards consensus parameter. - Major bugfixes: - Fix a bug in the bounds-checking in the 32-bit curve25519-donna implementation that caused incorrect results on 32-bit implementations when certain malformed inputs were used along with a small class of private ntor keys. - Minor bugfixes: - Warn and drop the circuit if we receive an inbound 'relay early' cell. - Correct a confusing error message when trying to extend a circuit via the control protocol but we don't know a descriptor or microdescriptor for one of the specified relays. - Avoid an illegal read from stack when initializing the TLS module using a version of OpenSSL without all of the ciphers used by the v2 link handshake. </description> <summary>update for tor</summary> </patchinfo>
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