{"id":"CVE-2017-12425","details":"An issue was discovered in Varnish HTTP Cache 4.0.1 through 4.0.4, 4.1.0 through 4.1.7, 5.0.0, and 5.1.0 through 5.1.2. A wrong if statement in the varnishd source code means that particular invalid requests from the client can trigger an assert, related to an Integer Overflow. This causes the varnishd worker process to abort and restart, losing the cached contents in the process. An attacker can therefore crash the varnishd worker process on demand and effectively keep it from serving content - a Denial-of-Service attack. The specific source-code filename containing the incorrect statement varies across releases.","modified":"2026-07-08T05:49:34.262680558Z","published":"2017-08-04T09:29:00.237Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"4.0.2-rc\\-1"},{"last_affected":"4.0.2-rc\\-1"},{"introduced":"4.0.3-rc\\-1"},{"last_affected":"4.0.3-rc\\-1"},{"introduced":"4.0.3-rc\\-2"},{"last_affected":"4.0.3-rc\\-2"},{"introduced":"4.0.3-rc\\-2\\-proper"},{"last_affected":"4.0.3-rc\\-2\\-proper"},{"introduced":"4.0.3-rc\\-3"},{"last_affected":"4.0.3-rc\\-3"},{"introduced":"4.1.0"},{"last_affected":"4.1.0"}],"source":"CPE_STRING","vendor_product":"varnish-cache:varnish","cpes":["cpe:2.3:a:varnish-cache:varnish:4.0.2:rc-1:*:*:*:*:*:*","cpe:2.3:a:varnish-cache:varnish:4.0.3:rc-1:*:*:*:*:*:*","cpe:2.3:a:varnish-cache:varnish:4.0.3:rc-2-proper:*:*:*:*:*:*","cpe:2.3:a:varnish-cache:varnish:4.0.3:rc-2:*:*:*:*:*:*","cpe:2.3:a:varnish-cache:varnish:4.0.3:rc-3:*:*:*:*:*:*","cpe:2.3:a:varnish-cache:varnish:4.1.0:*:*:*:*:*:*:*"]},{"extracted_events":[{"introduced":"4.1.0-beta1"},{"last_affected":"4.1.0-beta1"},{"introduced":"4.1.0-technology_preview1"},{"last_affected":"4.1.0-technology_preview1"},{"introduced":"4.1.1"},{"last_affected":"4.1.1"},{"introduced":"4.1.1-beta1"},{"last_affected":"4.1.1-beta1"},{"introduced":"4.1.1-beta2"},{"last_affected":"4.1.1-beta2"},{"introduced":"4.1.2"},{"last_affected":"4.1.2"},{"introduced":"4.1.2-beta1"},{"last_affected":"4.1.2-beta1"},{"introduced":"4.1.2-beta2"},{"last_affected":"4.1.2-beta2"},{"introduced":"4.1.3"},{"last_affected":"4.1.3"},{"introduced":"4.1.3-beta1"},{"last_affected":"4.1.3-beta1"},{"introduced":"4.1.3-beta2"},{"last_affected":"4.1.3-beta2"},{"introduced":"4.1.4"},{"last_affected":"4.1.4"},{"introduced":"4.1.4-beta1"},{"last_affected":"4.1.4-beta1"},{"introduced":"4.1.4-beta2"},{"last_affected":"4.1.4-beta2"},{"introduced":"4.1.4-beta3"},{"last_affected":"4.1.4-beta3"},{"introduced":"4.1.5"},{"last_affected":"4.1.5"},{"introduced":"4.1.5-beta1"},{"last_affected":"4.1.5-beta1"},{"introduced":"4.1.5-beta2"},{"last_affected":"4.1.5-beta2"},{"introduced":"4.1.6"},{"last_affected":"4.1.6"},{"introduced":"4.1.7"},{"last_affected":"4.1.7"}],"source":"CPE_STRING","vendor_product":"varnish-software:varnish_cache","cpes":["cpe:2.3:a:varnish-software:varnish_cache:4.1.0:beta1:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.0:technology_preview1:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.1:*:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.1:beta1:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.1:beta2:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.2:*:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.2:beta1:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.2:beta2:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.3:*:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.3:beta1:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.3:beta2:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.4:*:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.4:beta1:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.4:beta2:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.4:beta3:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.5:*:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.5:beta1:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.5:beta2:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.6:*:*:*:*:*:*:*","cpe:2.3:a:varnish-software:varnish_cache:4.1.7:*:*:*:*:*:*:*"]},{"cpes":["cpe:2.3:a:varnish_cache_project:varnish_cache:4.0.1:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"4.0.1"},{"last_affected":"4.0.1"}],"source":"CPE_STRING","vendor_product":"varnish_cache_project:varnish_cache"}]},"references":[{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3924"},{"type":"ADVISORY","url":"https://github.com/varnishcache/varnish-cache/issues/2379"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-security-announce/2017/msg00186.html"},{"type":"ADVISORY","url":"https://www.varnish-cache.org/security/VSV00001.html#vsv00001"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1477222"},{"type":"REPORT","url":"https://bugzilla.suse.com/show_bug.cgi?id=1051917"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/varnishcache/varnish-cache","events":[{"introduced":"4354e5e04a6af43394bbbdb32dc2654ca4887de8"},{"last_affected":"6ece695868b71d47c5a3619e18c3b18792bfe149"}],"database_specific":{"extracted_events":[{"introduced":"4.0.1"},{"last_affected":"4.0.1"},{"introduced":"4.0.2"},{"last_affected":"4.0.2"},{"introduced":"4.0.3"},{"last_affected":"4.0.3"},{"introduced":"4.0.4"},{"last_affected":"4.0.4"},{"introduced":"5.0.0"},{"last_affected":"5.0.0"},{"introduced":"5.1.0"},{"last_affected":"5.1.0"},{"introduced":"5.1.1"},{"last_affected":"5.1.1"},{"introduced":"5.1.2"},{"last_affected":"5.1.2"}],"source":"CPE_STRING","cpe":["cpe:2.3:a:varnish_cache_project:varnish_cache:4.0.1:*:*:*:*:*:*:*","cpe:2.3:a:varnish_cache_project:varnish_cache:4.0.2:*:*:*:*:*:*:*","cpe:2.3:a:varnish_cache_project:varnish_cache:4.0.3:*:*:*:*:*:*:*","cpe:2.3:a:varnish_cache_project:varnish_cache:4.0.4:*:*:*:*:*:*:*","cpe:2.3:a:varnish_cache_project:varnish_cache:5.0.0:*:*:*:*:*:*:*","cpe:2.3:a:varnish_cache_project:varnish_cache:5.1.0:*:*:*:*:*:*:*","cpe:2.3:a:varnish_cache_project:varnish_cache:5.1.1:*:*:*:*:*:*:*","cpe:2.3:a:varnish_cache_project:varnish_cache:5.1.2:*:*:*:*:*:*:*"]}}],"versions":["4.0.1","4.0.2","4.0.3","4.0.4","5.0.0","5.1.0","5.1.1","5.1.2","varnish-5.1.2","varnish-5.1.1","varnish-5.1.0","varnish-5.0.0","varnish-4.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12425.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}