Vulnerability Description
The connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial of service (memory consumption or excessive cell reception rate) or bypass intended flow-control restrictions via a RELAY_COMMAND_SENDME command.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Torproject | Tor | <= 0.2.3.24 |
Related Weaknesses (CWE)
References
- http://openwall.com/lists/oss-security/2012/11/26/11
- http://secunia.com/advisories/51329
- http://security.gentoo.org/glsa/glsa-201301-03.xml
- https://bugs.gentoo.org/show_bug.cgi?id=444804
- https://bugzilla.redhat.com/show_bug.cgi?id=880310
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80289
- https://gitweb.torproject.org/arma/tor.git/commitdiff/b9b54568c0bb64c32bd0b36295Patch
- https://gitweb.torproject.org/tor.git/blob/release-0.2.3:/ReleaseNotes
- https://trac.torproject.org/projects/tor/ticket/6252Vendor Advisory
- http://openwall.com/lists/oss-security/2012/11/26/11
- http://secunia.com/advisories/51329
- http://security.gentoo.org/glsa/glsa-201301-03.xml
- https://bugs.gentoo.org/show_bug.cgi?id=444804
- https://bugzilla.redhat.com/show_bug.cgi?id=880310
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80289
FAQ
What is CVE-2012-5573?
CVE-2012-5573 is a vulnerability with a CVSS score of 5.0 (MEDIUM). The connection_edge_process_relay_cell function in or/relay.c in Tor before 0.2.3.25 maintains circuits even if an unexpected SENDME cell arrives, which might allow remote attackers to cause a denial ...
How severe is CVE-2012-5573?
CVE-2012-5573 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-5573?
Check the references section above for vendor advisories and patch information. Affected products include: Torproject Tor.