{"id":"DEBIAN-CVE-2025-8556","details":"A flaw was found in CIRCL's implementation of the FourQ elliptic curve. This vulnerability allows an attacker to compromise session security via low-order point injection and incorrect point validation during Diffie-Hellman key exchange.","modified":"2026-09-01T16:06:23.484644384Z","published":"2025-08-06T09:15:28.173Z","upstream":["CVE-2025-8556"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-8556"}],"affected":[{"package":{"name":"golang-github-cloudflare-circl","ecosystem":"Debian:12","purl":"pkg:deb/debian/golang-github-cloudflare-circl?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.1-2","1.3.2-1","1.3.3-1","1.3.5-1","1.3.6-1","1.3.7-1","1.3.8-1","1.3.9-1","1.4.0-1","1.5.0-1","1.6.0-1","1.6.1-1","1.6.3-1","1.6.4-1","1.6.4-2","1.6.5-1","1.6.5-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-8556.json"}},{"package":{"name":"golang-github-cloudflare-circl","ecosystem":"Debian:13","purl":"pkg:deb/debian/golang-github-cloudflare-circl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-8556.json"}},{"package":{"name":"golang-github-cloudflare-circl","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-github-cloudflare-circl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-8556.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}