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TOR : Security Vulnerabilities Published In 2011

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2011-4897 200 +Info 2011-12-22 2011-12-30
4.3
None Remote Medium Not required Partial None None
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.
2 CVE-2011-4896 200 +Info 2011-12-22 2011-12-30
4.3
None Remote Medium Not required Partial None None
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.
3 CVE-2011-4895 200 +Info 2011-12-22 2011-12-23
4.3
None Remote Medium Not required Partial None None
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.
4 CVE-2011-4894 200 +Info 2011-12-22 2011-12-23
4.3
None Remote Medium Not required Partial None None
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.
5 CVE-2011-2778 119 DoS Exec Code Overflow Mem. Corr. 2011-12-22 2012-01-18
7.6
None Remote High Not required Complete Complete Complete
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.
6 CVE-2011-2769 200 +Info 2011-12-22 2012-01-18
4.3
None Remote Medium Not required Partial None None
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.
7 CVE-2011-2768 264 Bypass 2011-12-22 2012-01-18
5.8
None Remote Medium Not required Partial Partial None
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.
8 CVE-2011-1924 119 DoS Overflow 2011-06-14 2011-06-30
5.0
None Remote Low Not required None None Partial
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.
9 CVE-2011-0493 189 DoS 2011-01-19 2011-02-01
5.0
None Remote Low Not required None None Partial
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.
10 CVE-2011-0492 399 DoS 2011-01-19 2011-02-01
5.0
None Remote Low Not required None None Partial
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.
11 CVE-2011-0491 20 DoS 2011-01-19 2011-02-12
5.0
None Remote Low Not required None None Partial
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."
12 CVE-2011-0490 DoS 2011-01-19 2011-02-12
5.0
None Remote Low Not required None None Partial
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.
13 CVE-2011-0427 119 DoS Exec Code Overflow Mem. Corr. 2011-01-19 2011-07-19
6.8
None Remote Medium Not required Partial Partial Partial
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.
14 CVE-2011-0016 399 +Info 2011-01-19 2011-01-22
2.1
None Local Low Not required Partial None None
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.
15 CVE-2011-0015 20 DoS 2011-01-19 2011-07-19
5.0
None Remote Low Not required None None Partial
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.
Total number of vulnerabilities : 15   Page : 1 (This Page)
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