Improper input validation in Torproject Tor
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 (assertion failure and daemon exit) via a malformed directory object, a different vulnerability than CVE-2012-4419.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.022 (82.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Torproject Tor — versions 0.0.2, 0.0.3, 0.0.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.gentoo.org/glsa/glsa-201301-03.xml (vendor-advisory)
- 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 (mailing-list)
- lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html (vendor-advisory)
- gitweb.torproject.org/tor.git/commit/973c18bf0e84d14d8006a9ae97fde7f7fb97e404
- lists.torproject.org/pipermail/tor-talk/2012-September/025501.html (mailing-list)
- lists.opensuse.org/opensuse-updates/2012-10/msg00005.html (vendor-advisory)
Frequently asked questions
- What is CVE-2012-4922?
- CVE-2012-4922 is a vulnerability in Torproject Tor, classified under Improper Input Validation. Published 2012-09-14.
- Is CVE-2012-4922 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.