{"action":"Upgrade strongswan to 5.5.3-r0 or later.","affected":[{"fixed":"5.5.3-r0","introduced":"0"}],"component":"strongswan","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["5.5.3-r0"],"id":"tcs_01M5N9VCPA3JMZDW944H5AAHC2","modified_at":"2026-06-15T18:18:07.084764948Z","published_at":"2017-06-08T16:29:00.543Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2017-9023","https://security.alpinelinux.org/vuln/CVE-2017-9023"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2017-9023#Alpine:v3.23/strongswan","url":"https://osv.dev/vulnerability/ALPINE-CVE-2017-9023"}],"summary":"The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite loop) via a crafted ce"}