{"id":"USN-5597-1","summary":"linux-oracle vulnerability","details":"It was discovered that the virtual terminal driver in the Linux kernel did\nnot properly handle VGA console font changes, leading to an out-of-bounds\nwrite. A local attacker could use this to cause a denial of service (system\ncrash) or possibly execute arbitrary code.\n","modified":"2026-02-10T04:42:46Z","published":"2022-09-05T21:45:43Z","related":["UBUNTU-CVE-2021-33656"],"upstream":["CVE-2021-33656","UBUNTU-CVE-2021-33656"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5597-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33656"}],"affected":[{"package":{"name":"linux-oracle","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/linux-oracle@4.15.0-1105.116~16.04.1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1105.116~16.04.1"}]}],"versions":["4.15.0-1007.9~16.04.1","4.15.0-1008.10~16.04.1","4.15.0-1009.11~16.04.1","4.15.0-1010.12~16.04.1","4.15.0-1011.13~16.04.1","4.15.0-1013.15~16.04.1","4.15.0-1014.16~16.04.1","4.15.0-1015.17~16.04.1","4.15.0-1017.19~16.04.2","4.15.0-1018.20~16.04.1","4.15.0-1021.23~16.04.1","4.15.0-1022.25~16.04.1","4.15.0-1023.26~16.04.1","4.15.0-1025.28~16.04.1","4.15.0-1026.29~16.04.1","4.15.0-1027.30~16.04.1","4.15.0-1029.32~16.04.1","4.15.0-1030.33~16.04.1","4.15.0-1031.34~16.04.1","4.15.0-1033.36~16.04.1","4.15.0-1035.38~16.04.1","4.15.0-1037.41~16.04.1","4.15.0-1038.42~16.04.1","4.15.0-1039.43~16.04.1","4.15.0-1045.49~16.04.1","4.15.0-1046.50~16.04.1","4.15.0-1050.54~16.04.1","4.15.0-1051.55~16.04.1","4.15.0-1053.57~16.04.1","4.15.0-1054.58~16.04.1","4.15.0-1056.61~16.04.1","4.15.0-1058.64~16.04.1","4.15.0-1059.65~16.04.1","4.15.0-1061.67~16.04.1","4.15.0-1062.68~16.04.1","4.15.0-1064.71~16.04.1","4.15.0-1065.73~16.04.1","4.15.0-1066.74~16.04.1","4.15.0-1067.75~16.04.1","4.15.0-1068.76~16.04.1","4.15.0-1069.77~16.04.1","4.15.0-1070.78~16.04.1","4.15.0-1071.79~16.04.1","4.15.0-1072.80~16.04.1","4.15.0-1075.83~16.04.1","4.15.0-1078.86~16.04.1","4.15.0-1079.87~16.04.1","4.15.0-1080.88~16.04.1","4.15.0-1081.89~16.04.1","4.15.0-1082.90~16.04.1","4.15.0-1083.91~16.04.1","4.15.0-1084.92~16.04.1","4.15.0-1085.93~16.04.1","4.15.0-1086.94~16.04.1","4.15.0-1087.95~16.04.1","4.15.0-1089.98~16.04.1","4.15.0-1090.99~16.04.1","4.15.0-1091.100~16.04.1","4.15.0-1092.101~16.04.1","4.15.0-1093.102~16.04.1","4.15.0-1095.104~16.04.1","4.15.0-1098.108~16.04.1","4.15.0-1101.112~16.04.1","4.15.0-1102.113~16.04.1","4.15.0-1104.115~16.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"linux-buildinfo-4.15.0-1105-oracle","binary_version":"4.15.0-1105.116~16.04.1"},{"binary_name":"linux-headers-4.15.0-1105-oracle","binary_version":"4.15.0-1105.116~16.04.1"},{"binary_name":"linux-image-unsigned-4.15.0-1105-oracle","binary_version":"4.15.0-1105.116~16.04.1"},{"binary_name":"linux-modules-4.15.0-1105-oracle","binary_version":"4.15.0-1105.116~16.04.1"},{"binary_name":"linux-modules-extra-4.15.0-1105-oracle","binary_version":"4.15.0-1105.116~16.04.1"},{"binary_name":"linux-oracle-headers-4.15.0-1105","binary_version":"4.15.0-1105.116~16.04.1"},{"binary_name":"linux-oracle-tools-4.15.0-1105","binary_version":"4.15.0-1105.116~16.04.1"},{"binary_name":"linux-tools-4.15.0-1105-oracle","binary_version":"4.15.0-1105.116~16.04.1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5597-1.json","cves_map":{"cves":[{"id":"CVE-2021-33656","severity":[{"score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}}],"schema_version":"1.7.3"}