CVE-2017-8820

In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, remote attackers can cause a denial of service NULL pointer dereference and application crash against directory authorities via a malformed descriptor, aka...

CVE-2017-8823

In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, there is a use-after-free in onion service v2 during intro-point expiration because the expiring list is mismanaged in certain error cases, aka TROVE-2017-013...

UBUNTU-CVE-2017-8821

In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, an attacker can cause a denial of service application hang via crafted PEM input that signifies a public key requiring a password, which triggers an attempt by the...

CVE-2017-8822

In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, relays that have incompletely downloaded descriptors can pick themselves in a circuit path, leading to a degradation of anonymity, aka TROVE-2017-012...

Tor 'rend_service_intro_established' function sensitive information disclosure vulnerability

Tor is a second-generation implementation of onion routing, used primarily for anonymous access to the Internet. A security vulnerability in the 'rendserviceintroestablished' function in the or/rendservice.c file in Tor allows remote attackers to exploit the vulnerability by submitting a special...

DEBIAN-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 buft 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,...

The vulnerability of Tor’s software allows a remote attacker to compromise the confidentiality and integrity of protected information.

The vulnerability exists in Tor due to the handling of the chain after a client receives an incoming cell with RELAYEARLY. Exploiting this vulnerability allows malicious actors operating remotely to carry out an attack with confirmation of traffic, using the RELAY and RELAYEARLY cells as means to...

Tor 'strlcat_chk.c' Remote Denial of Service Vulnerability

Tor is a second-generation implementation of onion routing, used primarily for anonymous access to the Internet. A remote denial of service vulnerability exists in Tor, which allows remote attackers to exploit the vulnerability by submitting a special request to crash the affected application,...

Tor 'buffers.c' Denial of Service Vulnerability

Tor The Onion Router is a second-generation implementation of onion routing, primarily used for anonymous access to the Internet. A denial of service vulnerability exists in Tor. An attacker can exploit this vulnerability to crash an application and cause a denial of service...

Tor Denial of Service Vulnerability (CNVD-2015-02240)

Tor is a second-generation implementation of onion routing, through which users can communicate anonymously over the Internet. Tor suffers from a denial-of-service vulnerability that allows a Tor client to trigger an assertion failure when parsing a carefully constructed hidden service descriptor...

Tor Denial of Service Vulnerability (CNVD-2015-02241)

Tor is a second-generation implementation of onion routing, through which users can communicate anonymously over the Internet. A denial-of-service vulnerability exists in Tor, where a malicious client can trigger an assertion failure in a Tor instance that provides a hidden service, rendering the...

DEBIAN-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 RELAYEARLY 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 RELAYEARLY cells as a means of communicating...

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 RELAYEARLY 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 RELAYEARLY cells as a means of communicating...

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 RELAYEARLY 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 RELAYEARLY cells as a means of communicating...

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...

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...

DEBIAN-CVE-2012-5573

The connectionedgeprocessrelaycell 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...

UBUNTU-CVE-2012-5573

The connectionedgeprocessrelaycell 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...

CVE-2012-4922

The tortimegm 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...

DEBIAN-CVE-2012-3518

The networkstatusparsevotefromstring function in routerparse.c in Tor before 0.2.2.38 does not properly handle an invalid flavor name, which allows remote attackers to cause a denial of service out-of-bounds read and daemon crash via a crafted 1 vote document or 2 consensus document...