{"action":"Upgrade apache2 to 2.2.22-1 or later.","affected":[{"fixed":"2.2.22-1","introduced":"0"}],"component":"apache2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["2.2.22-1"],"id":"tcs_01M5N9Y65SNM5M2YM4RQ7ZPBRX","modified_at":"2026-10-23T17:47:29.215286864Z","published_at":"2012-01-28T04:05:00.750Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2012-0021","https://security-tracker.debian.org/tracker/CVE-2012-0021"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2012-0021#Debian:13/apache2","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2012-0021"}],"summary":"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, wh"}