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CVE-2012-4922

Date: September 14, 2012

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.

Language: C

Severity Score

Related Resources (12)

http://lists.opensuse.org/opensuse-updates/2012-10/msg00005.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088006.html
http://security.gentoo.org/glsa/glsa-201301-03.xml
https://gitweb.torproject.org/tor.git/commit/973c18bf0e84d14d8006a9ae97fde7f7fb97e404
https://people.canonical.com/~ubuntu-security/cve/CVE-2012-4922
https://lists.torproject.org/pipermail/tor-talk/2012-September/025501.html
https://trac.torproject.org/projects/tor/ticket/6811
https://nvd.nist.gov/vuln/detail/CVE-2012-4922
https://gitweb.torproject.org/tor.git/blob/release-0.2.2:/ReleaseNotes
https://security-tracker.debian.org/tracker/CVE-2012-4922
http://openwall.com/lists/oss-security/2012/09/12/5
https://www.mend.io/vulnerability-database/CVE-2012-4922

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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