CVEvulnerability
CVE-2011-2768
5.8 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2011-12-23
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:N
- Weaknesses
- CWE-264
Description
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.
Affected configurations
• tor tor (<= 0.2.2.33)
• tor tor 0.0.2
• tor tor 0.0.3
• tor tor 0.0.4
• tor tor 0.0.5
• tor tor 0.0.6
• tor tor 0.0.6.1
• tor tor 0.0.6.2
• tor tor 0.0.7
• tor tor 0.0.7.1
• tor tor 0.0.7.2
• tor tor 0.0.7.3
• tor tor 0.0.8
• tor tor 0.0.8.1
• tor tor 0.0.9
• tor tor 0.0.9.1
• tor tor 0.0.9.2
• tor tor 0.0.9.3
• tor tor 0.0.9.4
• tor tor 0.0.9.5
• tor tor 0.0.9.6
• tor tor 0.0.9.7
• tor tor 0.0.9.8
• tor tor 0.0.9.9
• tor tor 0.0.9.10
• tor tor 0.1.0.1
• tor tor 0.1.0.2
• tor tor 0.1.0.3
• tor tor 0.1.0.4
• tor tor 0.1.0.5
• tor tor 0.1.0.6
• tor tor 0.1.0.7
• tor tor 0.1.0.8
• tor tor 0.1.0.9
• tor tor 0.1.0.10
• tor tor 0.1.0.11
• tor tor 0.1.0.12
• tor tor 0.1.0.13
• tor tor 0.1.0.14
• tor tor 0.1.0.15
• tor tor 0.1.0.16
• tor tor 0.1.0.17
• tor tor 0.1.0.18
• tor tor 0.1.0.19
• tor tor 0.1.1
• tor tor 0.1.1.1
• tor tor 0.1.1.2
• tor tor 0.1.1.3
• tor tor 0.1.1.4
• tor tor 0.1.1.5
• tor tor 0.1.1.6
• tor tor 0.1.1.7
• tor tor 0.1.1.8
• tor tor 0.1.1.9
• tor tor 0.1.1.10
• tor tor 0.1.1.11
• tor tor 0.1.1.12
• tor tor 0.1.1.13
• tor tor 0.1.1.14
• tor tor 0.1.1.15
… and 145 more
Related
Weakness · not in database (1)
References
- http://www.debian.org/security/2011/dsa-2331 www.debian.org
- https://blog.torproject.org/blog/tor-02234-released-security-patches Patch, Vendor Advisory
- http://www.debian.org/security/2011/dsa-2331 www.debian.org
- https://blog.torproject.org/blog/tor-02234-released-security-patches Patch, Vendor Advisory