Vulnerability 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.
CVSS Score
4.3
MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tor | Tor | <= 0.2.2.33 |
Related Weaknesses (CWE)
References
- https://blog.torproject.org/blog/tor-02234-released-security-patchesPatchVendor Advisory
- https://blog.torproject.org/blog/tor-02234-released-security-patchesPatchVendor Advisory
FAQ
What is CVE-2011-4894?
CVE-2011-4894 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 o...
How severe is CVE-2011-4894?
CVE-2011-4894 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4894?
Check the references section above for vendor advisories and patch information. Affected products include: Tor Tor.