CVE-2011-2778

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

7.6

Vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Exploitability: 4.9 / Impact: 10.0

Source: NVD

Description

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.

Affected (230)

Products: Tor: Tor

Tor

1 product

Tor

Configuration A

230 vulnerable

Vulnerable Software	Affected Versions
Tor Tor	Up to 0.2.2.34
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 0.2.2.33
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-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (4)

http://www.debian.org/security/2011/dsa-2363

Source: cve@mitre.org

https://blog.torproject.org/blog/tor-02235-released-security-patches

Source: cve@mitre.org

PatchVendor Advisory

http://www.debian.org/security/2011/dsa-2363

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

https://blog.torproject.org/blog/tor-02235-released-security-patches

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

PatchVendor Advisory

Timeline

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