Vulnerability Description
The tor_timegm function in common/util.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.22-rc, does not properly validate time values, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a malformed directory object, a different vulnerability than CVE-2012-4419.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Torproject | Tor | <= 0.2.2.38 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.
- http://lists.opensuse.org/opensuse-updates/2012-10/msg00005.html
- http://openwall.com/lists/oss-security/2012/09/12/5
- http://security.gentoo.org/glsa/glsa-201301-03.xml
- https://gitweb.torproject.org/tor.git/blob/release-0.2.2:/ReleaseNotes
- https://gitweb.torproject.org/tor.git/commit/973c18bf0e84d14d8006a9ae97fde7f7fb9
- https://lists.torproject.org/pipermail/tor-talk/2012-September/025501.html
- https://trac.torproject.org/projects/tor/ticket/6811
- http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.
- http://lists.opensuse.org/opensuse-updates/2012-10/msg00005.html
- http://openwall.com/lists/oss-security/2012/09/12/5
- http://security.gentoo.org/glsa/glsa-201301-03.xml
- https://gitweb.torproject.org/tor.git/blob/release-0.2.2:/ReleaseNotes
- https://gitweb.torproject.org/tor.git/commit/973c18bf0e84d14d8006a9ae97fde7f7fb9
- https://lists.torproject.org/pipermail/tor-talk/2012-September/025501.html
FAQ
What is CVE-2012-4922?
CVE-2012-4922 is a vulnerability with a CVSS score of 5.0 (MEDIUM). The tor_timegm function in common/util.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.22-rc, does not properly validate time values, which allows remote attackers to cause a denial of service (ass...
How severe is CVE-2012-4922?
CVE-2012-4922 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-2012-4922?
Check the references section above for vendor advisories and patch information. Affected products include: Torproject Tor.