{"action":"Upgrade fetchmail to 6.3.8-8 or later.","affected":[{"fixed":"6.3.8-8","introduced":"0"}],"component":"fetchmail","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.3.8-8"],"id":"tcs_01M5N8VWFZV58Q6QKV8QFTZBVY","modified_at":"2026-10-21T17:47:31.564079698Z","published_at":"2007-08-28T01:17:00Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2007-4565","https://security-tracker.debian.org/tracker/CVE-2007-4565"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2007-4565","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2007-4565"}],"summary":"sink.c in fetchmail before 6.3.9 allows context-dependent attackers to cause a denial of service (NULL dereference and application crash) by refusing certain warning messages that are sent over SMTP."}