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,...
CVE-2012-4922 is a medium vulnerability (CVSS 5.0) in Torproject Tor, published September 13, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.23%, the 83rd percentile. Fixed in tor 0.2.3.22-rc-1.
- Severity
- 5.0 MediumCVSS 2.0, NVD
- Exploit chance
- 2.23%EPSS, 83rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
0.2.3.22-rc-1tor +4 more
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.
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
torDebian:12 | before 0.2.3.22-rc-1 | 0.2.3.22-rc-1 |
torDebian:13 | before 0.2.3.22-rc-1 | 0.2.3.22-rc-1 |
torDebian:14 | before 0.2.3.22-rc-1 | 0.2.3.22-rc-1 |
torDebian:6.0 From an advisory covering 4 CVEs | before 0.2.2.39-1, plus listed versions 0.2.1.29-10.2.1.30-10.2.1.31-10.2.1.31-1~lenny+10.2.1.32-1 Show 44 moreShow less0.2.2.1-alpha-10.2.2.10-alpha-10.2.2.10-alpha-20.2.2.11-alpha-10.2.2.12-alpha-10.2.2.13-alpha-10.2.2.14-alpha-10.2.2.15-alpha-10.2.2.16-alpha-10.2.2.17-alpha-10.2.2.18-alpha-10.2.2.18-alpha-20.2.2.19-alpha-10.2.2.2-alpha-10.2.2.20-alpha-10.2.2.21-alpha-10.2.2.22-alpha-10.2.2.23-alpha-10.2.2.27-beta-10.2.2.28-beta-10.2.2.29-beta-10.2.2.3-alpha-10.2.2.30-rc-10.2.2.31-rc-10.2.2.32-10.2.2.32-1~bpo60+10.2.2.33-10.2.2.33-1~bpo60+10.2.2.34-10.2.2.34-1~bpo60+10.2.2.35-10.2.2.35-1~squeeze+10.2.2.36-10.2.2.37-10.2.2.37-1~bpo60+10.2.2.37-1~squeeze+10.2.2.38-10.2.2.4-alpha-10.2.2.5-alpha-10.2.2.6-alpha-10.2.2.7-alpha-10.2.2.7-alpha-20.2.2.8-alpha-10.2.2.9-alpha-1 | 0.2.2.39-1 |
toropenSUSE:Tumbleweed From an advisory covering 22 CVEs | before 0.2.8.11-1.1 | 0.2.8.11-1.1 |
What each source reports
NVD Score used
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.
- Record
CVE-2012-4922- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2012-4922- Updated
- 2026-11-02
EUVDEUVD-2012-4847No score
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.
- Record
EUVD-2012-4847- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h4mc-jpwx-rjgpNo score
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,...
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.
- Record
GHSA-h4mc-jpwx-rjgp- Weakness
- CWE-20
- Updated
- 2026-11-02
OSVNo score
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.
- Record
CVE-2012-4922- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-4922No score
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.
- Record
DEBIAN-CVE-2012-4922- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10423-1No score
tor-0.2.8.11-1.1 on GA media
These are all security issues fixed in the tor-0.2.8.11-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10423-1- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
security.gentoo.org/glsa/glsa-201301-03.xml
gitweb.torproject.org/tor.git/blob/release-0.2.2:/ReleaseNotes
trac.torproject.org/projects/tor/ticket/6811
openwall.com/lists/oss-security/2012/09/12/5
lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html
Show 27 moreShow less
lists.torproject.org/pipermail/tor-talk/2012-September/025501.html
lists.opensuse.org/opensuse-updates/2012-10/msg00005.html
nvd.nist.gov/vuln/detail/CVE-2012-4922
github.com/advisories/GHSA-h4mc-jpwx-rjgp
security-tracker.debian.org/tracker/CVE-2012-4922
suse.com/security/cve/CVE-2011-0427