{"id":"USN-3999-1","summary":"gnutls28 vulnerabilities","details":"Eyal Ronen, Kenneth G. Paterson, and Adi Shamir discovered that GnuTLS was\nvulnerable to a timing side-channel attack known as the \"Lucky Thirteen\"\nissue. A remote attacker could possibly use this issue to perform\nplaintext-recovery attacks via analysis of timing data. This issue only\naffected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-10844,\nCVE-2018-10845, CVE-2018-10846)\n\nTavis Ormandy discovered that GnuTLS incorrectly handled memory when\nverifying certain X.509 certificates. A remote attacker could use this\nissue to cause GnuTLS to crash, resulting in a denial of service, or\npossibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS,\nUbuntu 18.10, and Ubuntu 19.04. (CVE-2019-3829)\n\nIt was discovered that GnuTLS incorrectly handled certain post-handshake\nmessages. A remote attacker could use this issue to cause GnuTLS to crash,\nresulting in a denial of service, or possibly execute arbitrary code. This\nissue only affected Ubuntu 18.10 and Ubuntu 19.04. (CVE-2019-3836)\n","modified":"2026-04-27T15:33:05.032527662Z","published":"2019-05-30T13:23:52Z","related":["UBUNTU-CVE-2018-10844","UBUNTU-CVE-2018-10845","UBUNTU-CVE-2018-10846","UBUNTU-CVE-2019-3829"],"upstream":["CVE-2018-10844","CVE-2018-10845","CVE-2018-10846","CVE-2019-3829","UBUNTU-CVE-2018-10844","UBUNTU-CVE-2018-10845","UBUNTU-CVE-2018-10846","UBUNTU-CVE-2019-3829","UBUNTU-CVE-2019-3836"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3999-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-10844"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-10845"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-10846"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-3829"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-3836"}],"affected":[{"package":{"name":"gnutls28","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/gnutls28@3.4.10-4ubuntu1.5?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.10-4ubuntu1.5"}]}],"versions":["3.3.15-5ubuntu2","3.3.18-1ubuntu1","3.3.20-1ubuntu1","3.4.9-2ubuntu1","3.4.10-4ubuntu1","3.4.10-4ubuntu1.1","3.4.10-4ubuntu1.2","3.4.10-4ubuntu1.3","3.4.10-4ubuntu1.4"],"ecosystem_specific":{"binaries":[{"binary_name":"gnutls-bin","binary_version":"3.4.10-4ubuntu1.5"},{"binary_name":"guile-gnutls","binary_version":"3.4.10-4ubuntu1.5"},{"binary_name":"libgnutls-openssl27","binary_version":"3.4.10-4ubuntu1.5"},{"binary_name":"libgnutls30","binary_version":"3.4.10-4ubuntu1.5"},{"binary_name":"libgnutlsxx28","binary_version":"3.4.10-4ubuntu1.5"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3999-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2018-10844"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2018-10845"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2018-10846"}],"ecosystem":"Ubuntu:16.04:LTS"}}},{"package":{"name":"gnutls28","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/gnutls28@3.5.18-1ubuntu1.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.18-1ubuntu1.1"}]}],"versions":["3.5.8-6ubuntu3","3.5.17-1ubuntu1","3.5.17-1ubuntu3","3.5.18-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"gnutls-bin","binary_version":"3.5.18-1ubuntu1.1"},{"binary_name":"libgnutls-dane0","binary_version":"3.5.18-1ubuntu1.1"},{"binary_name":"libgnutls-openssl27","binary_version":"3.5.18-1ubuntu1.1"},{"binary_name":"libgnutls30","binary_version":"3.5.18-1ubuntu1.1"},{"binary_name":"libgnutlsxx28","binary_version":"3.5.18-1ubuntu1.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3999-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2018-10844"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2018-10845"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2018-10846"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-3829"}],"ecosystem":"Ubuntu:18.04:LTS"}}}],"schema_version":"1.7.5"}