CVE-2012-4922
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.23% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.2% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2012-09-14 18:00Z14 YR AGO
- Last updated
- 2024-08-06 20:50Z2 YR AGO
- Reserved
- 2012-09-14
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.1
- Document digest
- e8b8992631ed23529e72d8475a65e6adc83a5319c189e94fdd6911dd5962554d
05 Affected products
06 References
- security.gentoo.orgGLSA-201301-03http://security.gentoo.org/glsa/glsa-201301-03.xml
- gitweb.torproject.orghttps://gitweb.torproject.org/tor.git/blob/release-0.2.2:/ReleaseNotes
- trac.torproject.orghttps://trac.torproject.org/projects/tor/ticket/6811
- openwall.com[oss-security] 20120912 CVE id request: torhttp://openwall.com/lists/oss-security/2012/09/12/5
- lists.fedoraproject.orgFEDORA-2012-14638http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html
- gitweb.torproject.orghttps://gitweb.torproject.org/tor.git/commit/973c18bf0e84d14d8006a9ae97fde7f7fb97e404
- lists.torproject.org[tor-talk] 20120912 Tor 0.2.3.22-rc is outhttps://lists.torproject.org/pipermail/tor-talk/2012-September/025501.html
- lists.opensuse.orgopenSUSE-SU-2012:1278http://lists.opensuse.org/opensuse-updates/2012-10/msg00005.html
07 Fixed in
Debian 12
- tor Fixed in 0.2.3.22-rc-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- tor Fixed in 0.2.3.22-rc-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- tor Fixed in 0.2.3.22-rc-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.