VULNERABILITY INTELLIGENCE
CVE-2012-0021
CVSS score2.6 LOW
EPSS probability30.34%
CISA KEVNot currently listed
Published2012-01-28
Last modified2026-06-16
CVSS vectorAV:N/AC:H/Au:N/C:N/I:N/A:P
Description
The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.
Weakness classification
- CWE-20: Improper Input Validation