{"id":"USN-6488-1","summary":"strongswan vulnerability","details":"Florian Picca discovered that strongSwan incorrectly handled certain DH\npublic values. A remote attacker could use this issue to cause strongSwan\nto crash, resulting in a denial of service, or possibly execute arbitrary\ncode.\n","modified":"2026-02-10T04:43:25Z","published":"2023-11-20T15:46:14Z","related":["UBUNTU-CVE-2023-41913"],"upstream":["CVE-2023-41913","UBUNTU-CVE-2023-41913"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6488-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-41913"}],"affected":[{"package":{"name":"strongswan","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/strongswan@5.8.2-1ubuntu3.6?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8.2-1ubuntu3.6"}]}],"versions":["5.7.2-1ubuntu3","5.8.1-1ubuntu1","5.8.2-1ubuntu1","5.8.2-1ubuntu2","5.8.2-1ubuntu3","5.8.2-1ubuntu3.1","5.8.2-1ubuntu3.2","5.8.2-1ubuntu3.3","5.8.2-1ubuntu3.4","5.8.2-1ubuntu3.5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"charon-cmd","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"charon-systemd","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"libcharon-extauth-plugins","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"libcharon-extra-plugins","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"libcharon-standard-plugins","binary_version":"5.8.2-1ubuntu3.6"},{"binary_version":"5.8.2-1ubuntu3.6","binary_name":"libstrongswan"},{"binary_name":"libstrongswan-extra-plugins","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"libstrongswan-standard-plugins","binary_version":"5.8.2-1ubuntu3.6"},{"binary_version":"5.8.2-1ubuntu3.6","binary_name":"strongswan"},{"binary_name":"strongswan-charon","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"strongswan-libcharon","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"strongswan-nm","binary_version":"5.8.2-1ubuntu3.6"},{"binary_version":"5.8.2-1ubuntu3.6","binary_name":"strongswan-pki"},{"binary_version":"5.8.2-1ubuntu3.6","binary_name":"strongswan-scepclient"},{"binary_name":"strongswan-starter","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"strongswan-swanctl","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"strongswan-tnc-base","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"strongswan-tnc-client","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"strongswan-tnc-ifmap","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"strongswan-tnc-pdp","binary_version":"5.8.2-1ubuntu3.6"},{"binary_name":"strongswan-tnc-server","binary_version":"5.8.2-1ubuntu3.6"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2023-41913","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6488-1.json"}},{"package":{"name":"strongswan","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/strongswan@5.9.5-2ubuntu2.2?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9.5-2ubuntu2.2"}]}],"versions":["5.9.1-1ubuntu3","5.9.1-1ubuntu3.1","5.9.4-1ubuntu1","5.9.4-1ubuntu2","5.9.4-1ubuntu3","5.9.4-1ubuntu4","5.9.5-2ubuntu1","5.9.5-2ubuntu2","5.9.5-2ubuntu2.1"],"ecosystem_specific":{"binaries":[{"binary_name":"charon-cmd","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"charon-systemd","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"libcharon-extauth-plugins","binary_version":"5.9.5-2ubuntu2.2"},{"binary_version":"5.9.5-2ubuntu2.2","binary_name":"libcharon-extra-plugins"},{"binary_name":"libstrongswan","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"libstrongswan-extra-plugins","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"libstrongswan-standard-plugins","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"strongswan","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"strongswan-charon","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"strongswan-libcharon","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"strongswan-nm","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"strongswan-pki","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"strongswan-scepclient","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"strongswan-starter","binary_version":"5.9.5-2ubuntu2.2"},{"binary_name":"strongswan-swanctl","binary_version":"5.9.5-2ubuntu2.2"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2023-41913","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6488-1.json"}}],"schema_version":"1.7.3"}