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.
Metrics
No CVSS v4.0
No CVSS v3.1
No CVSS v3.0
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
The EPSS score is 0.00137.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
---|---|
Tor |
|
Configuration 1 [-]
|
No data.
No data.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-06T23:15:30.714Z
Reserved: 2011-07-19T00:00:00
Link: CVE-2011-2768

No data.

Status : Deferred
Published: 2011-12-23T03:59:21.957
Modified: 2025-04-11T00:51:21.963
Link: CVE-2011-2768

No data.

No data.