{"id":"USN-2540-1","summary":"gnutls26, gnutls28 vulnerabilities","details":"It was discovered that GnuTLS did not perform date and time checks on\nCA certificates, contrary to expectations. This issue only affected\nUbuntu 10.04 LTS. (CVE-2014-8155)\n\nNikos Mavrogiannopoulos discovered that GnuTLS incorrectly verified that\nsignature algorithms matched. A remote attacker could possibly use this\nissue to downgrade to a disallowed algorithm. This issue only affected\nUbuntu 10.04 LTS, Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-0282)\n\nIt was discovered that GnuTLS incorrectly verified certificate algorithms.\nA remote attacker could possibly use this issue to downgrade to a\ndisallowed algorithm. (CVE-2015-0294)\n","modified":"2026-04-22T09:10:00.928608Z","published":"2015-03-23T19:13:13Z","related":["UBUNTU-CVE-2015-0282","UBUNTU-CVE-2015-0294"],"upstream":["CVE-2015-0282","CVE-2015-0294","UBUNTU-CVE-2014-8155","UBUNTU-CVE-2015-0282","UBUNTU-CVE-2015-0294"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2540-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-8155"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-0282"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-0294"}],"affected":[{"package":{"name":"gnutls26","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/gnutls26@2.12.23-12ubuntu2.2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.23-12ubuntu2.2"}]}],"versions":["2.12.23-1ubuntu4","2.12.23-1ubuntu5","2.12.23-12ubuntu1","2.12.23-12ubuntu2","2.12.23-12ubuntu2.1"],"ecosystem_specific":{"binaries":[{"binary_name":"gnutls-bin","binary_version":"3.0.11+really2.12.23-12ubuntu2.2"},{"binary_name":"libgnutls-openssl27","binary_version":"2.12.23-12ubuntu2.2"},{"binary_name":"libgnutls26","binary_version":"2.12.23-12ubuntu2.2"},{"binary_name":"libgnutlsxx27","binary_version":"2.12.23-12ubuntu2.2"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2015-0282","severity":[{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2015-0294","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-2540-1.json"}}],"schema_version":"1.7.5"}