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  • Results Type: Overview
  • Keyword (text search): cpe:2.3:a:torproject:tor:0.0.2:pre27:*:*:*:*:*:*
There are 21 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2020-15572

Tor before 0.4.3.6 has an out-of-bounds memory access that allows a remote denial-of-service (crash) attack against Tor instances built to use Mozilla Network Security Services (NSS), aka TROVE-2020-001.

Published: July 15, 2020; 1:15:11 PM -0400
V3.1: 7.5 HIGH
V2.0: 4.3 MEDIUM
CVE-2020-8516

** DISPUTED ** The daemon in Tor through 0.4.1.8 and 0.4.2.x through 0.4.2.6 does not verify that a rendezvous node is known before attempting to connect to it, which might make it easier for remote attackers to discover circuit information. NOTE: The network team of Tor claims this is an intended behavior and not a vulnerability.

Published: February 02, 2020; 8:15:10 AM -0500
V3.1: 5.3 MEDIUM
V2.0: 5.0 MEDIUM
CVE-2015-2929

The Hidden Service (HS) client implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote servers to cause a denial of service (assertion failure and application exit) via a malformed HS descriptor.

Published: January 24, 2020; 1:15:12 PM -0500
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2015-2928

The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.

Published: January 24, 2020; 1:15:12 PM -0500
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2015-2689

Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle pending-connection resolve states during periods of high DNS load, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.

Published: January 24, 2020; 1:15:12 PM -0500
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2015-2688

buf_pullup in Tor before 0.2.4.26 and 0.2.5.x before 0.2.5.11 does not properly handle unexpected arrival times of buffers with invalid layouts, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via crafted packets.

Published: January 24, 2020; 1:15:12 PM -0500
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2019-8955

In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler.

Published: February 21, 2019; 6:29:00 PM -0500
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2018-0490

An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.

Published: March 05, 2018; 10:29:00 AM -0500
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2016-1254

Tor before 0.2.8.12 might allow remote attackers to cause a denial of service (client crash) via a crafted hidden service descriptor.

Published: December 05, 2017; 11:29:00 AM -0500
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2017-16541

Tor Browser before 7.0.9 on macOS and Linux allows remote attackers to bypass the intended anonymity feature and discover a client IP address via vectors involving a crafted web site that leverages file:// mishandling in Firefox, aka TorMoil. NOTE: Tails is unaffected.

Published: November 04, 2017; 2:29:00 PM -0400
V3.0: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2017-0380

The rend_service_intro_established function in or/rendservice.c in Tor before 0.2.8.15, 0.2.9.x before 0.2.9.12, 0.3.0.x before 0.3.0.11, 0.3.1.x before 0.3.1.7, and 0.3.2.x before 0.3.2.1-alpha, when SafeLogging is disabled, allows attackers to obtain sensitive information by leveraging access to the log files of a hidden service, because uninitialized stack data is included in an error message about construction of an introduction point circuit.

Published: September 18, 2017; 12:29:00 PM -0400
V3.0: 5.9 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2017-0376

The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the connection_edge_process_relay_cell function via a BEGIN_DIR cell on a rendezvous circuit.

Published: June 09, 2017; 1:29:00 PM -0400
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2017-0375

The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the relay_send_end_cell_from_edge_ function via a malformed BEGIN cell.

Published: June 09, 2017; 1:29:00 PM -0400
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2016-8860

Tor before 0.2.8.9 and 0.2.9.x before 0.2.9.4-alpha had internal functions that were entitled to expect that buf_t data had NUL termination, but the implementation of or/buffers.c did not ensure that NUL termination was present, which allows remote attackers to cause a denial of service (client, hidden service, relay, or authority crash) via crafted data.

Published: January 04, 2017; 3:59:00 PM -0500
V3.0: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2014-5117

Tor before 0.2.4.23 and 0.2.5 before 0.2.5.6-alpha maintains a circuit after an inbound RELAY_EARLY cell is received by a client, which makes it easier for remote attackers to conduct traffic-confirmation attacks by using the pattern of RELAY and RELAY_EARLY cells as a means of communicating information about hidden service names.

Published: July 30, 2014; 12:55:07 PM -0400
V3.x:(not available)
V2.0: 5.8 MEDIUM
CVE-2012-2250

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.

Published: February 02, 2014; 10:55:03 PM -0500
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-2012-2249

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.

Published: February 02, 2014; 10:55:03 PM -0500
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-2013-7295

Tor before 0.2.4.20, when OpenSSL 1.x is used in conjunction with a certain HardwareAccel setting on Intel Sandy Bridge and Ivy Bridge platforms, does not properly generate random numbers for (1) relay identity keys and (2) hidden-service identity keys, which might make it easier for remote attackers to bypass cryptographic protection mechanisms via unspecified vectors.

Published: January 17, 2014; 4:55:14 PM -0500
V3.x:(not available)
V2.0: 4.0 MEDIUM
CVE-2012-5573

The connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial of service (memory consumption or excessive cell reception rate) or bypass intended flow-control restrictions via a RELAY_COMMAND_SENDME command.

Published: January 01, 2013; 7:35:14 AM -0500
V3.x:(not available)
V2.0: 5.0 MEDIUM
CVE-2012-4922

The tor_timegm function in common/util.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.22-rc, does not properly validate time values, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a malformed directory object, a different vulnerability than CVE-2012-4419.

Published: September 14, 2012; 2:55:04 PM -0400
V3.x:(not available)
V2.0: 5.0 MEDIUM