VULNERABILITY INTELLIGENCE
CVE-2012-4419
CVSS score5 MEDIUM
EPSS probability2.16%
CISA KEVNot currently listed
Published2012-09-14
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P
Description
The compare_tor_addr_to_addr_policy function in or/policies.c in Tor before 0.2.2.39, and 0.2.3.x before 0.2.3.21-rc, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a zero-valued port field that is not properly handled during policy comparison.