{"id":"USN-4491-1","summary":"gnutls28 vulnerability","details":"It was discovered that GnuTLS incorrectly handled certain alerts when being\nused with TLS 1.3 servers. A remote attacker could use this issue to cause\nGnuTLS to crash, resulting in a denial of service, or possibly execute\narbitrary code.\n","modified":"2026-04-22T10:07:50.068217Z","published":"2020-09-09T11:04:03Z","related":["UBUNTU-CVE-2020-24659"],"upstream":["CVE-2020-24659","UBUNTU-CVE-2020-24659"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4491-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-24659"}],"affected":[{"package":{"name":"gnutls28","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/gnutls28@3.6.13-2ubuntu1.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.13-2ubuntu1.3"}]}],"versions":["3.6.9-5ubuntu1","3.6.9-5ubuntu2","3.6.10-5","3.6.11.1-2","3.6.11.1-2ubuntu2","3.6.13-2ubuntu1","3.6.13-2ubuntu1.1","3.6.13-2ubuntu1.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.6.13-2ubuntu1.3","binary_name":"gnutls-bin"},{"binary_version":"3.6.13-2ubuntu1.3","binary_name":"guile-gnutls"},{"binary_version":"3.6.13-2ubuntu1.3","binary_name":"libgnutls-dane0"},{"binary_version":"3.6.13-2ubuntu1.3","binary_name":"libgnutls-openssl27"},{"binary_version":"3.6.13-2ubuntu1.3","binary_name":"libgnutls30"},{"binary_version":"3.6.13-2ubuntu1.3","binary_name":"libgnutlsxx28"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4491-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2020-24659"}]}}}],"schema_version":"1.7.5"}