{"id":"USN-5111-2","summary":"strongswan vulnerability","details":"USN-5111-1 fixed a vulnerability in strongSwan. This update provides\nthe corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that strongSwan incorrectly handled replacing\n certificates in the cache. A remote attacker could use this issue to cause\n strongSwan to crash, resulting in a denial of service, or possibly execute\n arbitrary code. (CVE-2021-41991)\n","modified":"2026-02-10T04:42:20Z","published":"2021-10-19T15:10:02Z","related":["UBUNTU-CVE-2021-41991"],"upstream":["CVE-2021-41991","UBUNTU-CVE-2021-41991"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5111-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-41991"}],"affected":[{"package":{"name":"strongswan","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/strongswan@5.1.2-0ubuntu2.11+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.2-0ubuntu2.11+esm1"}]}],"versions":["4.6.4-9","5.1.0-2","5.1.0-3","5.1.1-0ubuntu1","5.1.1-0ubuntu2","5.1.1-0ubuntu3","5.1.1-0ubuntu4","5.1.1-0ubuntu5","5.1.1-0ubuntu7","5.1.1-0ubuntu14","5.1.1-0ubuntu17","5.1.2~dr3+git20130120-0ubuntu2","5.1.2~dr3+git20130120-0ubuntu3","5.1.2~rc1-0ubuntu3","5.1.2~rc1-0ubuntu4","5.1.2~rc2-0ubuntu2","5.1.2-0ubuntu1","5.1.2-0ubuntu2","5.1.2-0ubuntu2.2","5.1.2-0ubuntu2.3","5.1.2-0ubuntu2.4","5.1.2-0ubuntu2.5","5.1.2-0ubuntu2.6","5.1.2-0ubuntu2.7","5.1.2-0ubuntu2.8","5.1.2-0ubuntu2.10","5.1.2-0ubuntu2.11"],"ecosystem_specific":{"availability":"Available 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