Torproject Tor vulnerabilities

CVE-2006-3410 [MEDIUM] CVE-2006-3410: Tor before 0 Tor before 0.1.1.20 creates "internal circuits" primarily consisting of nodes with "useful exit nodes," which allows remote attackers to conduct unspecified statistical attacks.

CVE-2012-2250 [MEDIUM] CVE-2012-2250: Tor before 0.2.3.24-rc allows remote attackers to cause a denial of service (assertion failure and d Tor before 0.2.3.24-rc allows remote attackers to cause a denial of service (assertion failure and daemon exit) by performing link protocol negotiation incorrectly.

CVE-2007-4097 [MEDIUM] CVE-2007-4097: Tor before 0 Tor before 0.1.2.15 sends "destroy cells" containing the reason for tearing down a circuit, which allows remote attackers to obtain sensitive information, contrary to specifications.

CVE-2006-3411 [MEDIUM] CVE-2006-3411: TLS handshakes in Tor before 0 TLS handshakes in Tor before 0.1.1.20 generate public-private keys based on TLS context rather than the connection, which makes it easier for remote attackers to conduct brute force attacks on the encryption keys.

CVE-2011-0491 [MEDIUM] CVE-2011-0491: The tor_realloc function in Tor before 0 The tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon crash) via unspecified vectors, related to "underflow errors."

CVE-2012-3519 [MEDIUM] CVE-2012-3519: routerlist routerlist.c in Tor before 0.2.2.38 uses a different amount of time for relay-list iteration depending on which relay is chosen, which might allow remote attackers to obtain sensitive information about relay selection via a timing side-channel attack.

CVE-2012-2249 [MEDIUM] CVE-2012-2249: Tor before 0.2.3.23-rc allows remote attackers to cause a denial of service (assertion failure and d Tor before 0.2.3.23-rc allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a renegotiation attempt that occurs after the initiation of the V3 link protocol.

CVE-2006-4508 [MEDIUM] CVE-2006-4508: Unspecified vulnerability in (1) Tor 0 Unspecified vulnerability in (1) Tor 0.1.0.x before 0.1.0.18 and 0.1.1.x before 0.1.1.23, and (2) ScatterChat before 1.0.2, allows remote attackers operating a Tor entry node to route arbitrary Tor traffic through clients or cause a denial of service (flood) via unspecified vectors.

CVE-2011-2769 [MEDIUM] CVE-2011-2769: Tor before 0 Tor before 0.2.2.34, when configured as a bridge, accepts the CREATE and CREATE_FAST values in the Command field of a cell within an OR connection that it initiated, which allows remote relays to enumerate bridges by using these values.

CVE-2011-0493 [MEDIUM] CVE-2011-0493: Tor before 0 Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha might allow remote attackers to cause a denial of service (assertion failure and daemon exit) via vectors related to malformed router caches and improper handling of integer values.

CVE-2011-0490 [MEDIUM] CVE-2011-0490: Tor before 0 Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha makes calls to Libevent within Libevent log handlers, which might allow remote attackers to cause a denial of service (daemon crash) via vectors that trigger certain log messages.

CVE-2006-3408 [MEDIUM] CVE-2006-3408: Unspecified vulnerability in the directory server (dirserver) in Tor before 0 Unspecified vulnerability in the directory server (dirserver) in Tor before 0.1.1.20 allows remote attackers to cause an unspecified denial of service via unknown vectors.

CVE-2009-0937 [MEDIUM] CVE-2009-0937: Unspecified vulnerability in Tor before 0 Unspecified vulnerability in Tor before 0.2.0.34 allows directory mirrors to cause a denial of service via unknown vectors.

CVE-2007-3165 [MEDIUM] CVE-2007-3165: Tor before 0 Tor before 0.1.2.14 can construct circuits in which an entry guard is in the same family as the exit node, which might compromise the anonymity of traffic sources and destinations by exposing traffic to inappropriate remote observers.

CVE-2005-2643 [MEDIUM] CVE-2005-2643: Tor 0 Tor 0.1.0.13 and earlier, and experimental versions 0.1.1.4-alpha and earlier, does not reject certain weak keys when using ephemeral Diffie-Hellman (DH) handshakes, which allows malicious Tor servers to obtain the keys that a client uses for other systems in the circuit.

CVE-2011-0492 [MEDIUM] CVE-2011-0492: Tor before 0 Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha allows remote attackers to cause a denial of service (assertion failure and daemon exit) via blobs that trigger a certain file size, as demonstrated by the cached-descriptors.new file.

CVE-2006-3416 [MEDIUM] CVE-2006-3416: Tor before 0 Tor before 0.1.1.20 kills the circuit when it receives an unrecognized relay command, which causes network circuits to be disbanded. NOTE: while this item is listed under the "Security fixes" section of the developer changelog, the developer clarified on 20060707 that this is only a self-DoS. Therefore this issue should not be included in CVE

CVE-2006-3413 [MEDIUM] CVE-2006-3413: The privoxy configuration file in Tor before 0 The privoxy configuration file in Tor before 0.1.1.20, when run on Apple OS X, logs all data via the "logfile", which allows attackers to obtain potentially sensitive information.

CVE-2011-4896 [MEDIUM] CVE-2011-4896: Tor before 0 Tor before 0.2.2.24-alpha continues to use a reachable bridge that was previously configured but is not currently configured, which might allow remote attackers to obtain sensitive information about clients in opportunistic circumstances by monitoring network traffic to the bridge port.

CVE-2009-0938 [MEDIUM] CVE-2009-0938: Unspecified vulnerability in Tor before 0 Unspecified vulnerability in Tor before 0.2.0.34 allows directory mirrors to cause a denial of service (exit node crash) via "malformed input."