{"id":"USN-6488-2","summary":"strongswan vulnerability","details":"USN-6488-1 fixed a vulnerability in strongSwan. This update provides\nthe corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.\n\nOriginal advisory details:\n\n Florian Picca discovered that strongSwan incorrectly handled certain DH\n public values. A remote attacker could use this issue to cause strongSwan\n to crash, resulting in a denial of service, or possibly execute arbitrary\n code.\n","modified":"2026-06-25T13:31:35.088730902Z","published":"2023-12-14T21:21:52Z","related":["UBUNTU-CVE-2023-41913"],"upstream":["CVE-2023-41913","UBUNTU-CVE-2023-41913"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6488-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-41913"}],"affected":[{"package":{"name":"strongswan","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/strongswan?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.3.5-1ubuntu3.8+esm4"}]}],"versions":["5.1.2-0ubuntu6","5.1.2-0ubuntu7","5.1.2-0ubuntu8","5.3.5-1ubuntu1","5.3.5-1ubuntu2","5.3.5-1ubuntu3","5.3.5-1ubuntu3.1","5.3.5-1ubuntu3.2","5.3.5-1ubuntu3.3","5.3.5-1ubuntu3.4","5.3.5-1ubuntu3.5","5.3.5-1ubuntu3.7","5.3.5-1ubuntu3.8","5.3.5-1ubuntu3.8+esm1","5.3.5-1ubuntu3.8+esm2","5.3.5-1ubuntu3.8+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"charon-cmd","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"libcharon-extra-plugins","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"libstrongswan","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"libstrongswan-extra-plugins","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"libstrongswan-standard-plugins"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan"},{"binary_name":"strongswan-charon","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-ike"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-ikev1"},{"binary_name":"strongswan-ikev2","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-libcharon","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-nm"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-af-alg"},{"binary_name":"strongswan-plugin-agent","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-attr-sql","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-certexpire","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-coupling","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-curl","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-dhcp","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-dnscert"},{"binary_name":"strongswan-plugin-dnskey","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-duplicheck"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-eap-aka"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-eap-aka-3gpp2"},{"binary_name":"strongswan-plugin-eap-dynamic","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-eap-gtc"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-eap-md5"},{"binary_name":"strongswan-plugin-eap-mschapv2","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-eap-peap","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-eap-radius","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-eap-sim","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-eap-sim-file"},{"binary_name":"strongswan-plugin-eap-sim-pcsc","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-eap-simaka-pseudonym","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-eap-simaka-reauth","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-eap-simaka-sql","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-eap-tls","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-eap-tnc","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-eap-ttls","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-error-notify","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-farp","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_name":"strongswan-plugin-fips-prf","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-gcrypt"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-gmp"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-ipseckey"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-kernel-libipsec"},{"binary_name":"strongswan-plugin-ldap","binary_version":"5.3.5-1ubuntu3.8+esm4"},{"binary_version":"5.3.5-1ubuntu3.8+esm4","binary_name":"strongswan-plugin-led"},{"binary_name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