Torproject Tor vulnerabilities

94 known vulnerabilities affecting torproject/tor.

Total CVEs

CISA KEV

Public exploits

Exploited in wild

Severity breakdown

CRITICAL4HIGH29MEDIUM59LOW2

Vulnerabilities

Page 3 of 5

CVE-2012-4922MEDIUMCVSS 5.0≤ 0.2.2.38v0.0.2+79 more2012-09-14

CVE-2012-4922 [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, doe 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.

nvdosv

CVE-2012-3518MEDIUMCVSS 5.0≥ 0, < 0.2.3.20-rc-12012-08-26

CVE-2012-3518 [MEDIUM] CVE-2012-3518: The networkstatus_parse_vote_from_string function in routerparse The networkstatus_parse_vote_from_string 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.

osv

CVE-2012-3519MEDIUMCVSS 5.0≥ 0, < 0.2.3.20-rc-12012-08-26

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.

osv

CVE-2012-3517MEDIUMCVSS 5.0≥ 0, < 0.2.3.20-rc-12012-08-26

CVE-2012-3517 [MEDIUM] CVE-2012-3517: Use-after-free vulnerability in dns Use-after-free vulnerability in dns.c in Tor before 0.2.2.38 might allow remote attackers to cause a denial of service (daemon crash) via vectors related to failed DNS requests.

osv

CVE-2011-2778HIGHCVSS 7.6≥ 0, < 0.2.2.35-12011-12-23

CVE-2011-2778 [HIGH] CVE-2011-2778: Multiple heap-based buffer overflows in Tor before 0 Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration.

osv

CVE-2011-4897MEDIUMCVSS 4.3≥ 0, < 0.2.2.27-beta-12011-12-23

CVE-2011-4897 [MEDIUM] CVE-2011-4897: Tor before 0 Tor before 0.2.2.25-alpha, when configured as a relay without the Nickname configuration option, uses the local hostname as the Nickname value, which allows remote attackers to obtain potentially sensitive information by reading this value.

osv

CVE-2011-2768MEDIUMCVSS 5.8≥ 0, < 0.2.2.34-12011-12-23

CVE-2011-2768 [MEDIUM] CVE-2011-2768: Tor before 0 Tor before 0.2.2.34, when configured as a client or bridge, sends a TLS certificate chain as part of an outgoing OR connection, which allows remote relays to bypass intended anonymity properties by reading this chain and then determining the set of entry guards that the client or bridge had selected.

osv

CVE-2011-4895MEDIUMCVSS 4.3≥ 0, < 0.2.2.34-12011-12-23

CVE-2011-4895 [MEDIUM] CVE-2011-4895: Tor before 0 Tor before 0.2.2.34, when configured as a bridge, sets up circuits through a process different from the process used by a client, which makes it easier for remote attackers to enumerate bridges by observing circuit building.

osv

CVE-2011-4894MEDIUMCVSS 4.3≥ 0, < 0.2.2.34-12011-12-23

CVE-2011-4894 [MEDIUM] CVE-2011-4894: Tor before 0 Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections.

osv

CVE-2011-2769MEDIUMCVSS 4.3≥ 0, < 0.2.2.34-12011-12-23

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.

osv

CVE-2011-4896MEDIUMCVSS 4.3≥ 0, < 0.2.2.27-beta-12011-12-23

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.

osv

CVE-2011-1924MEDIUMCVSS 5.0≥ 0, < 0.2.1.30-12011-06-14

CVE-2011-1924 [MEDIUM] CVE-2011-1924: Buffer overflow in the policy_summarize function in or/policies Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.

osv

CVE-2011-0015MEDIUMCVSS 5.0≥ 0, < 0.2.1.29-12011-01-19

CVE-2011-0015 [MEDIUM] CVE-2011-0015: Tor before 0 Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not properly check the amount of compression in zlib-compressed data, which allows remote attackers to cause a denial of service via a large compression factor.

osv

CVE-2011-0493MEDIUMCVSS 5.0≥ 0, < 0.2.1.29-12011-01-19

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.

osv

CVE-2011-0427MEDIUMCVSS 6.8≥ 0, < 0.2.1.29-12011-01-19

CVE-2011-0427 [MEDIUM] CVE-2011-0427: Heap-based buffer overflow in Tor before 0 Heap-based buffer overflow in 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 (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.

osv

CVE-2011-0490MEDIUMCVSS 5.0≥ 0, < 0.2.1.29-12011-01-19

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.

osv

CVE-2011-0492MEDIUMCVSS 5.0≥ 0, < 0.2.1.29-12011-01-19

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.

osv

CVE-2011-0491MEDIUMCVSS 5.0≥ 0, < 0.2.1.29-12011-01-19

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."

osv

CVE-2011-0016LOWCVSS 2.1≥ 0, < 0.2.1.29-12011-01-19

CVE-2011-0016 [LOW] CVE-2011-0016: Tor before 0 Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not properly manage key data in memory, which might allow local users to obtain sensitive information by leveraging the ability to read memory that was previously used by a different process.

osv

CVE-2010-1676CRITICALCVSS 10.0≥ 0, < 0.2.1.26-62010-12-22

CVE-2010-1676 [CRITICAL] CVE-2010-1676: Heap-based buffer overflow in Tor before 0 Heap-based buffer overflow in Tor before 0.2.1.28 and 0.2.2.x before 0.2.2.20-alpha allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via unspecified vectors.

osv

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