{"id":"USN-6327-1","summary":"linux-kvm vulnerabilities","details":"Zheng Zhang discovered that the device-mapper implementation in the Linux\nkernel did not properly handle locking during table_clear() operations. A\nlocal attacker could use this to cause a denial of service (kernel\ndeadlock). (CVE-2023-2269)\n\nIt was discovered that a use-after-free vulnerability existed in the HFS+\nfile system implementation in the Linux kernel. A local attacker could\npossibly use this to cause a denial of service (system crash).\n(CVE-2023-2985)\n\nIt was discovered that the DVB Core driver in the Linux kernel did not\nproperly handle locking events in certain situations. A local attacker\ncould use this to cause a denial of service (kernel deadlock).\n(CVE-2023-31084)\n\nIt was discovered that the virtual terminal driver in the Linux kernel\ncontained a use-after-free vulnerability. A local attacker could use this\nto cause a denial of service (system crash) or possibly expose sensitive\ninformation (kernel memory). (CVE-2023-3567)\n\nIt was discovered that the Quick Fair Queueing network scheduler\nimplementation in the Linux kernel contained an out-of-bounds write\nvulnerability. A local attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2023-3611)\n\nIt was discovered that the network packet classifier with\nnetfilter/firewall marks implementation in the Linux kernel did not\nproperly handle reference counting, leading to a use-after-free\nvulnerability. A local attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2023-3776)\n\n","modified":"2026-02-10T04:43:17Z","published":"2023-08-31T21:51:29Z","related":["UBUNTU-CVE-2023-2269","UBUNTU-CVE-2023-2985","UBUNTU-CVE-2023-31084","UBUNTU-CVE-2023-3567","UBUNTU-CVE-2023-3611","UBUNTU-CVE-2023-3776"],"upstream":["CVE-2023-2269","CVE-2023-2985","CVE-2023-31084","CVE-2023-3567","CVE-2023-3611","CVE-2023-3776","UBUNTU-CVE-2023-2269","UBUNTU-CVE-2023-2985","UBUNTU-CVE-2023-31084","UBUNTU-CVE-2023-3567","UBUNTU-CVE-2023-3611","UBUNTU-CVE-2023-3776"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6327-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-2269"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-2985"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-3567"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-3611"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-3776"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-31084"}],"affected":[{"package":{"name":"linux-kvm","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/linux-kvm@4.4.0-1123.133?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1123.133"}]}],"versions":["4.4.0-1004.9","4.4.0-1007.12","4.4.0-1008.13","4.4.0-1009.14","4.4.0-1010.15","4.4.0-1012.17","4.4.0-1013.18","4.4.0-1015.20","4.4.0-1017.22","4.4.0-1019.24","4.4.0-1020.25","4.4.0-1021.26","4.4.0-1023.28","4.4.0-1026.31","4.4.0-1027.32","4.4.0-1029.34","4.4.0-1031.37","4.4.0-1032.38","4.4.0-1033.39","4.4.0-1035.41","4.4.0-1036.42","4.4.0-1037.43","4.4.0-1038.44","4.4.0-1039.45","4.4.0-1040.46","4.4.0-1041.47","4.4.0-1043.49","4.4.0-1044.50","4.4.0-1046.52","4.4.0-1047.53","4.4.0-1048.55","4.4.0-1051.58","4.4.0-1052.59","4.4.0-1054.61","4.4.0-1056.63","4.4.0-1058.65","4.4.0-1059.66","4.4.0-1060.67","4.4.0-1062.69","4.4.0-1063.70","4.4.0-1064.71","4.4.0-1065.72","4.4.0-1066.73","4.4.0-1068.75","4.4.0-1069.76","4.4.0-1070.77","4.4.0-1071.78","4.4.0-1075.82","4.4.0-1076.83","4.4.0-1077.84","4.4.0-1078.85","4.4.0-1079.86","4.4.0-1080.87","4.4.0-1082.91","4.4.0-1084.93","4.4.0-1085.94","4.4.0-1087.96","4.4.0-1088.97","4.4.0-1089.98","4.4.0-1090.99","4.4.0-1091.100","4.4.0-1092.101","4.4.0-1093.102","4.4.0-1094.103","4.4.0-1095.104","4.4.0-1096.105","4.4.0-1097.106","4.4.0-1098.107","4.4.0-1099.108","4.4.0-1100.109","4.4.0-1102.111","4.4.0-1103.112","4.4.0-1104.113","4.4.0-1105.114","4.4.0-1108.118","4.4.0-1110.120","4.4.0-1111.121","4.4.0-1112.122","4.4.0-1113.123","4.4.0-1114.124","4.4.0-1115.125","4.4.0-1116.126","4.4.0-1117.127","4.4.0-1118.128","4.4.0-1119.129","4.4.0-1120.130","4.4.0-1121.131","4.4.0-1122.132"],"ecosystem_specific":{"binaries":[{"binary_version":"4.4.0-1123.133","binary_name":"linux-buildinfo-4.4.0-1123-kvm"},{"binary_version":"4.4.0-1123.133","binary_name":"linux-cloud-tools-4.4.0-1123-kvm"},{"binary_version":"4.4.0-1123.133","binary_name":"linux-headers-4.4.0-1123-kvm"},{"binary_version":"4.4.0-1123.133","binary_name":"linux-image-4.4.0-1123-kvm"},{"binary_version":"4.4.0-1123.133","binary_name":"linux-kvm-cloud-tools-4.4.0-1123"},{"binary_version":"4.4.0-1123.133","binary_name":"linux-kvm-headers-4.4.0-1123"},{"binary_version":"4.4.0-1123.133","binary_name":"linux-kvm-tools-4.4.0-1123"},{"binary_version":"4.4.0-1123.133","binary_name":"linux-modules-4.4.0-1123-kvm"},{"binary_version":"4.4.0-1123.133","binary_name":"linux-tools-4.4.0-1123-kvm"}],"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-6327-1.json","cves_map":{"cves":[{"id":"CVE-2023-2269","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-2985","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-3567","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2023-3611","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2023-3776","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2023-31084","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}}],"schema_version":"1.7.3"}