{"id":"UBUNTU-CVE-2023-41913","details":"strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.","modified":"2026-02-04T02:51:11.233437Z","published":"2023-11-20T13:00:00Z","related":["USN-6488-1","USN-6488-2"],"upstream":["CVE-2023-41913"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-41913"},{"type":"REPORT","url":"https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-(cve-2023-41913).html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6488-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6488-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-41913"}],"affected":[{"package":{"name":"strongswan","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/strongswan@5.3.5-1ubuntu3.8+esm4?arch=source&distro=esm-infra/xenial"},"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":{"availability":"Available 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