{"id":"USN-4683-1","summary":"linux-oem-5.6 vulnerability","details":"Minh Yuan discovered that the framebuffer console driver in the Linux\nkernel did not properly handle fonts in some conditions. A local attacker\ncould use this to cause a denial of service (system crash) or possibly\nexpose sensitive information (kernel memory).\n","modified":"2026-02-10T04:42:01Z","published":"2021-01-07T00:03:25Z","related":["UBUNTU-CVE-2020-28974"],"upstream":["CVE-2020-28974","UBUNTU-CVE-2020-28974"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4683-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-28974"}],"affected":[{"package":{"name":"linux-oem-5.6","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-oem-5.6@5.6.0-1039.43?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.6.0-1039.43"}]}],"versions":["5.6.0-1007.7","5.6.0-1008.8","5.6.0-1010.10","5.6.0-1011.11","5.6.0-1013.13","5.6.0-1017.17","5.6.0-1018.18","5.6.0-1020.20","5.6.0-1021.21","5.6.0-1023.23","5.6.0-1026.26","5.6.0-1027.27","5.6.0-1028.28","5.6.0-1031.32","5.6.0-1032.33","5.6.0-1033.35","5.6.0-1034.36","5.6.0-1035.37","5.6.0-1036.39"],"ecosystem_specific":{"binaries":[{"binary_version":"5.6.0-1039.43","binary_name":"linux-buildinfo-5.6.0-1039-oem"},{"binary_version":"5.6.0-1039.43","binary_name":"linux-headers-5.6.0-1039-oem"},{"binary_version":"5.6.0-1039.43","binary_name":"linux-image-unsigned-5.6.0-1039-oem"},{"binary_version":"5.6.0-1039.43","binary_name":"linux-modules-5.6.0-1039-oem"},{"binary_version":"5.6.0-1039.43","binary_name":"linux-oem-5.6-headers-5.6.0-1039"},{"binary_version":"5.6.0-1039.43","binary_name":"linux-oem-5.6-tools-5.6.0-1039"},{"binary_version":"5.6.0-1039.43","binary_name":"linux-oem-5.6-tools-host"},{"binary_version":"5.6.0-1039.43","binary_name":"linux-tools-5.6.0-1039-oem"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-28974","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4683-1.json"}}],"schema_version":"1.7.3"}