CVE-2011-4894

Published: Dec 23, 2011Modified: Apr 29, 2026

4.3

Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Exploitability: 8.6 / Impact: 2.9

Source: NVD

Description

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.

Affected (229)

Products: Tor: Tor

Tor

1 product

Tor

Configuration A

229 vulnerable

Vulnerable Software	Affected Versions
Tor Tor	Up to 0.2.2.33
Tor Tor	Version 0.0.2
Tor Tor	Version 0.0.3
Tor Tor	Version 0.0.4
Tor Tor	Version 0.0.5
Tor Tor	Version 0.0.6.1
Tor Tor	Version 0.0.6.2
Tor Tor	Version 0.0.6
Tor Tor	Version 0.0.7.1
Tor Tor	Version 0.0.7.2
Tor Tor	Version 0.0.7.3
Tor Tor	Version 0.0.7
Tor Tor	Version 0.0.8.1
Tor Tor	Version 0.0.8
Tor Tor	Version 0.0.9.10
Tor Tor	Version 0.0.9.1
Tor Tor	Version 0.0.9.2
Tor Tor	Version 0.0.9.3
Tor Tor	Version 0.0.9.4
Tor Tor	Version 0.0.9.5
Tor Tor	Version 0.0.9.6
Tor Tor	Version 0.0.9.7
Tor Tor	Version 0.0.9.8
Tor Tor	Version 0.0.9.9
Tor Tor	Version 0.0.9
Tor Tor	Version 0.1.0.10
Tor Tor	Version 0.1.0.11
Tor Tor	Version 0.1.0.12
Tor Tor	Version 0.1.0.13
Tor Tor	Version 0.1.0.14
Tor Tor	Version 0.1.0.15
Tor Tor	Version 0.1.0.16
Tor Tor	Version 0.1.0.17
Tor Tor	Version 0.1.0.18
Tor Tor	Version 0.1.0.19
Tor Tor	Version 0.1.0.1
Tor Tor	Version 0.1.0.2
Tor Tor	Version 0.1.0.3
Tor Tor	Version 0.1.0.4
Tor Tor	Version 0.1.0.5
Tor Tor	Version 0.1.0.6
Tor Tor	Version 0.1.0.7
Tor Tor	Version 0.1.0.8
Tor Tor	Version 0.1.0.9
Tor Tor	Version 0.1.1.10
Tor Tor	Version 0.1.1.10 alpha
Tor Tor	Version 0.1.1.11
Tor Tor	Version 0.1.1.12
Tor Tor	Version 0.1.1.13
Tor Tor	Version 0.1.1.14
Tor Tor	Version 0.1.1.15
Tor Tor	Version 0.1.1.16
Tor Tor	Version 0.1.1.17
Tor Tor	Version 0.1.1.18
Tor Tor	Version 0.1.1.19
Tor Tor	Version 0.1.1.1
Tor Tor	Version 0.1.1.1 alpha
Tor Tor	Version 0.1.1.20
Tor Tor	Version 0.1.1.21
Tor Tor	Version 0.1.1.22
Tor Tor	Version 0.1.1.23
Tor Tor	Version 0.1.1.25
Tor Tor	Version 0.1.1.26
Tor Tor	Version 0.1.1.2
Tor Tor	Version 0.1.1.2 alpha
Tor Tor	Version 0.1.1.3
Tor Tor	Version 0.1.1.3 alpha
Tor Tor	Version 0.1.1.4
Tor Tor	Version 0.1.1.4 alpha
Tor Tor	Version 0.1.1.5
Tor Tor	Version 0.1.1.5 alpha
Tor Tor	Version 0.1.1.6
Tor Tor	Version 0.1.1.6 alpha
Tor Tor	Version 0.1.1.7
Tor Tor	Version 0.1.1.7 alpha
Tor Tor	Version 0.1.1.8
Tor Tor	Version 0.1.1.8 alpha
Tor Tor	Version 0.1.1.9
Tor Tor	Version 0.1.1.9 alpha
Tor Tor	Version 0.1.1
Tor Tor	Version 0.1.2.10
Tor Tor	Version 0.1.2.11
Tor Tor	Version 0.1.2.12
Tor Tor	Version 0.1.2.13
Tor Tor	Version 0.1.2.14
Tor Tor	Version 0.1.2.15
Tor Tor	Version 0.1.2.16
Tor Tor	Version 0.1.2.17
Tor Tor	Version 0.1.2.18
Tor Tor	Version 0.1.2.19
Tor Tor	Version 0.1.2.1 alpha-cvs
Tor Tor	Version 0.1.2.1 alpha
Tor Tor	Version 0.1.2.2
Tor Tor	Version 0.1.2.30
Tor Tor	Version 0.1.2.31
Tor Tor	Version 0.1.2.3 alpha
Tor Tor	Version 0.1.2.4
Tor Tor	Version 0.1.2.5
Tor Tor	Version 0.1.2.5 alpha
Tor Tor	Version 0.1.2.6 alpha
Tor Tor	Version 0.1.2.7 alpha
Tor Tor	Version 0.1.2.8 beta
Tor Tor	Version 0.1.2.9
Tor Tor	Version 0.2.0.10 alpha
Tor Tor	Version 0.2.0.11 alpha
Tor Tor	Version 0.2.0.12 alpha
Tor Tor	Version 0.2.0.13 alpha
Tor Tor	Version 0.2.0.14 alpha
Tor Tor	Version 0.2.0.15 alpha
Tor Tor	Version 0.2.0.16 alpha
Tor Tor	Version 0.2.0.17 alpha
Tor Tor	Version 0.2.0.18 alpha
Tor Tor	Version 0.2.0.19 alpha
Tor Tor	Version 0.2.0.1 alpha
Tor Tor	Version 0.2.0.20 alpha
Tor Tor	Version 0.2.0.21 alpha
Tor Tor	Version 0.2.0.22 alpha
Tor Tor	Version 0.2.0.23 alpha
Tor Tor	Version 0.2.0.24 alpha
Tor Tor	Version 0.2.0.25 alpha
Tor Tor	Version 0.2.0.26 alpha
Tor Tor	Version 0.2.0.27 alpha
Tor Tor	Version 0.2.0.28 alpha
Tor Tor	Version 0.2.0.29
Tor Tor	Version 0.2.0.29 alpha
Tor Tor	Version 0.2.0.2 alpha
Tor Tor	Version 0.2.0.30
Tor Tor	Version 0.2.0.30 alpha
Tor Tor	Version 0.2.0.31
Tor Tor	Version 0.2.0.31 alpha
Tor Tor	Version 0.2.0.32 alpha
Tor Tor	Version 0.2.0.33
Tor Tor	Version 0.2.0.34 alpha
Tor Tor	Version 0.2.0.35
Tor Tor	Version 0.2.0.3 alpha
Tor Tor	Version 0.2.0.4 alpha
Tor Tor	Version 0.2.0.5 alpha
Tor Tor	Version 0.2.0.6 alpha
Tor Tor	Version 0.2.0.7 alpha
Tor Tor	Version 0.2.0.8 alpha
Tor Tor	Version 0.2.0.9 alpha
Tor Tor	Version 0.2.1.1.10 alpha
Tor Tor	Version 0.2.1.1.11 alpha
Tor Tor	Version 0.2.1.1.12
Tor Tor	Version 0.2.1.1.12 alpha
Tor Tor	Version 0.2.1.1.13
Tor Tor	Version 0.2.1.1.14
Tor Tor	Version 0.2.1.1.15
Tor Tor	Version 0.2.1.1.16
Tor Tor	Version 0.2.1.1.17
Tor Tor	Version 0.2.1.1.18
Tor Tor	Version 0.2.1.1.19
Tor Tor	Version 0.2.1.1.1 alpha
Tor Tor	Version 0.2.1.1.20
Tor Tor	Version 0.2.1.1.21
Tor Tor	Version 0.2.1.1.22
Tor Tor	Version 0.2.1.1.23
Tor Tor	Version 0.2.1.1.24
Tor Tor	Version 0.2.1.1.25
Tor Tor	Version 0.2.1.1.26
Tor Tor	Version 0.2.1.1.27
Tor Tor	Version 0.2.1.1.28
Tor Tor	Version 0.2.1.1.2 alpha
Tor Tor	Version 0.2.1.1.3 alpha
Tor Tor	Version 0.2.1.1.4 alpha
Tor Tor	Version 0.2.1.1.5 alpha
Tor Tor	Version 0.2.1.1.6 alpha
Tor Tor	Version 0.2.1.1.7 alpha
Tor Tor	Version 0.2.1.1.8 alpha
Tor Tor	Version 0.2.1.1.9 alpha
Tor Tor	Version 0.2.1.10 alpha
Tor Tor	Version 0.2.1.11 alpha
Tor Tor	Version 0.2.1.12
Tor Tor	Version 0.2.1.12 alpha
Tor Tor	Version 0.2.1.13
Tor Tor	Version 0.2.1.14
Tor Tor	Version 0.2.1.15
Tor Tor	Version 0.2.1.16
Tor Tor	Version 0.2.1.17
Tor Tor	Version 0.2.1.18
Tor Tor	Version 0.2.1.19
Tor Tor	Version 0.2.1.1 alpha
Tor Tor	Version 0.2.1.20
Tor Tor	Version 0.2.1.21
Tor Tor	Version 0.2.1.22
Tor Tor	Version 0.2.1.23
Tor Tor	Version 0.2.1.24
Tor Tor	Version 0.2.1.25
Tor Tor	Version 0.2.1.26
Tor Tor	Version 0.2.1.27
Tor Tor	Version 0.2.1.28
Tor Tor	Version 0.2.1.29
Tor Tor	Version 0.2.1.2 alpha
Tor Tor	Version 0.2.1.3 alpha
Tor Tor	Version 0.2.1.4 alpha
Tor Tor	Version 0.2.1.5 alpha
Tor Tor	Version 0.2.1.6 alpha
Tor Tor	Version 0.2.1.7 alpha
Tor Tor	Version 0.2.1.8 alpha
Tor Tor	Version 0.2.1.9 alpha
Tor Tor	Version 0.2.2.10 alpha
Tor Tor	Version 0.2.2.11 alpha
Tor Tor	Version 0.2.2.12 alpha
Tor Tor	Version 0.2.2.13 alpha
Tor Tor	Version 0.2.2.14 alpha
Tor Tor	Version 0.2.2.15 alpha
Tor Tor	Version 0.2.2.16 alpha
Tor Tor	Version 0.2.2.17 alpha
Tor Tor	Version 0.2.2.18 alpha
Tor Tor	Version 0.2.2.19 alpha
Tor Tor	Version 0.2.2.1
Tor Tor	Version 0.2.2.1 alpha
Tor Tor	Version 0.2.2.20 alpha
Tor Tor	Version 0.2.2.29
Tor Tor	Version 0.2.2.29 beta
Tor Tor	Version 0.2.2.2
Tor Tor	Version 0.2.2.2 alpha
Tor Tor	Version 0.2.2.32
Tor Tor	Version 0.2.2.3
Tor Tor	Version 0.2.2.3 alpha
Tor Tor	Version 0.2.2.4
Tor Tor	Version 0.2.2.4 alpha
Tor Tor	Version 0.2.2.5
Tor Tor	Version 0.2.2.5 alpha
Tor Tor	Version 0.2.2.6
Tor Tor	Version 0.2.2.6 alpha
Tor Tor	Version 0.2.2.7 alpha
Tor Tor	Version 0.2.2.8 alpha
Tor Tor	Version 0.2.2.9 alpha

Related CWEs

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

References (2)

https://blog.torproject.org/blog/tor-02234-released-security-patches

Source: cve@mitre.org

PatchVendor Advisory

https://blog.torproject.org/blog/tor-02234-released-security-patches

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.