{"id":"USN-2957-2","summary":"libtasn1-6 vulnerability","details":"USN-2957-1 fixed a vulnerability in Libtasn1. This update provides the\ncorresponding update for Ubuntu 16.04 LTS.\n\nOriginal advisory details:\n\n Pascal Cuoq and Miod Vallat discovered that Libtasn1 incorrectly handled\n certain malformed DER certificates. A remote attacker could possibly use\n this issue to cause applications using Libtasn1 to hang, resulting in a\n denial of service.\n","modified":"2026-04-22T09:23:57.462755Z","published":"2016-05-02T18:31:54Z","related":["UBUNTU-CVE-2016-4008"],"upstream":["CVE-2016-4008","UBUNTU-CVE-2016-4008"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2957-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-4008"}],"affected":[{"package":{"name":"libtasn1-6","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libtasn1-6@4.7-3ubuntu0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7-3ubuntu0.16.04.1"}]}],"versions":["4.5-2","4.7-2","4.7-3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libtasn1-3-bin","binary_version":"4.7-3ubuntu0.16.04.1"},{"binary_name":"libtasn1-6","binary_version":"4.7-3ubuntu0.16.04.1"},{"binary_name":"libtasn1-bin","binary_version":"4.7-3ubuntu0.16.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-2957-2.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2016-4008"}]}}}],"schema_version":"1.7.5"}