cpe:2.3:a:tor:tor:0.0.2_pre26:*:*:*:*:*:*:*
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.
Max CVSS
4.3
EPSS Score
0.18%
Published
2011-12-23
Updated
2011-12-23
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.
Max CVSS
4.3
EPSS Score
0.18%
Published
2011-12-23
Updated
2011-12-23
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.
Max CVSS
7.6
EPSS Score
1.62%
Published
2011-12-23
Updated
2012-01-19
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.
Max CVSS
4.3
EPSS Score
0.19%
Published
2011-12-23
Updated
2012-01-19
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.
Max CVSS
5.8
EPSS Score
0.10%
Published
2011-12-23
Updated
2012-01-19
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.
Max CVSS
5.0
EPSS Score
6.32%
Published
2011-06-14
Updated
2011-06-30
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.
Max CVSS
5.0
EPSS Score
2.18%
Published
2011-01-19
Updated
2017-08-17
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.
Max CVSS
5.0
EPSS Score
2.09%
Published
2011-01-19
Updated
2017-08-17
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."
Max CVSS
5.0
EPSS Score
2.28%
Published
2011-01-19
Updated
2017-08-17
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.
Max CVSS
5.0
EPSS Score
2.09%
Published
2011-01-19
Updated
2017-08-17
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.
Max CVSS
6.8
EPSS Score
4.93%
Published
2011-01-19
Updated
2017-08-17
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.
Max CVSS
2.1
EPSS Score
0.04%
Published
2011-01-19
Updated
2011-01-22
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.
Max CVSS
5.0
EPSS Score
30.59%
Published
2011-01-19
Updated
2011-07-19
13 vulnerabilities found
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