CVEvulnerability

CVE-2011-2768

5.8 MEDIUM Published 2011-12-23 Modified 2026-06-16 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