{"id":"USN-6051-1","summary":"linux-azure-5.15, linux-azure-fde, linux-kvm vulnerabilities","details":"It was discovered that the Traffic-Control Index (TCINDEX) implementation\nin the Linux kernel did not properly perform filter deactivation in some\nsituations. A local attacker could possibly use this to gain elevated\nprivileges. Please note that with the fix for this CVE, kernel support for\nthe TCINDEX classifier has been removed. (CVE-2023-1829)\n\nIt was discovered that a race condition existed in the io_uring subsystem\nin the Linux kernel, leading to a use-after-free vulnerability. A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2023-1872)\n\n","modified":"2026-02-10T04:43:07Z","published":"2023-05-01T12:07:45Z","related":["UBUNTU-CVE-2023-1829","UBUNTU-CVE-2023-1872"],"upstream":["CVE-2023-1829","CVE-2023-1872","UBUNTU-CVE-2023-1829","UBUNTU-CVE-2023-1872"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6051-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-1829"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-1872"}],"affected":[{"package":{"name":"linux-azure-5.15","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-azure-5.15@5.15.0-1037.44~20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1037.44~20.04.1"}]}],"versions":["5.15.0-1007.8~20.04.1","5.15.0-1008.9~20.04.1","5.15.0-1013.16~20.04.1","5.15.0-1014.17~20.04.1","5.15.0-1017.20~20.04.1","5.15.0-1019.24~20.04.1","5.15.0-1020.25~20.04.1","5.15.0-1021.26~20.04.1","5.15.0-1022.27~20.04.1","5.15.0-1023.29~20.04.1","5.15.0-1029.36~20.04.1","5.15.0-1030.37~20.04.1","5.15.0-1031.38~20.04.1","5.15.0-1033.40~20.04.1","5.15.0-1034.41~20.04.1","5.15.0-1035.42~20.04.1","5.15.0-1036.43~20.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"linux-azure-5.15-cloud-tools-5.15.0-1037","binary_version":"5.15.0-1037.44~20.04.1"},{"binary_name":"linux-azure-5.15-headers-5.15.0-1037","binary_version":"5.15.0-1037.44~20.04.1"},{"binary_name":"linux-azure-5.15-tools-5.15.0-1037","binary_version":"5.15.0-1037.44~20.04.1"},{"binary_name":"linux-buildinfo-5.15.0-1037-azure","binary_version":"5.15.0-1037.44~20.04.1"},{"binary_name":"linux-cloud-tools-5.15.0-1037-azure","binary_version":"5.15.0-1037.44~20.04.1"},{"binary_name":"linux-headers-5.15.0-1037-azure","binary_version":"5.15.0-1037.44~20.04.1"},{"binary_name":"linux-image-unsigned-5.15.0-1037-azure","binary_version":"5.15.0-1037.44~20.04.1"},{"binary_name":"linux-modules-5.15.0-1037-azure","binary_version":"5.15.0-1037.44~20.04.1"},{"binary_name":"linux-modules-extra-5.15.0-1037-azure","binary_version":"5.15.0-1037.44~20.04.1"},{"binary_name":"linux-tools-5.15.0-1037-azure","binary_version":"5.15.0-1037.44~20.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6051-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2023-1829","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-2023-1872","severity":[{"score":"CVSS:3.1/AV:L/AC:H/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":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"linux-azure-fde","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/linux-azure-fde@5.15.0-1037.44.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1037.44.1"}]}],"versions":["5.15.0-1019.24.1","5.15.0-1024.30.1","5.15.0-1029.36.1","5.15.0-1030.37.1","5.15.0-1031.38.1","5.15.0-1033.40.1","5.15.0-1034.41.1","5.15.0-1035.42.1","5.15.0-1036.43.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"linux-image-unsigned-5.15.0-1037-azure-fde","binary_version":"5.15.0-1037.44.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6051-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2023-1829","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-2023-1872","severity":[{"score":"CVSS:3.1/AV:L/AC:H/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":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"linux-kvm","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/linux-kvm@5.15.0-1032.37?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1032.37"}]}],"versions":["5.13.0-1004.4","5.13.0-1006.6+22.04.1","5.13.0-1007.7+22.04.1","5.13.0-1010.11+22.04.1","5.15.0-1002.2","5.15.0-1004.4","5.15.0-1005.5","5.15.0-1007.7","5.15.0-1008.8","5.15.0-1010.11","5.15.0-1012.14","5.15.0-1013.16","5.15.0-1016.19","5.15.0-1017.21","5.15.0-1018.22","5.15.0-1019.23","5.15.0-1020.24","5.15.0-1021.26","5.15.0-1024.29","5.15.0-1025.30","5.15.0-1026.31","5.15.0-1028.33","5.15.0-1029.34","5.15.0-1030.35","5.15.0-1031.36"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"linux-buildinfo-5.15.0-1032-kvm","binary_version":"5.15.0-1032.37"},{"binary_name":"linux-headers-5.15.0-1032-kvm","binary_version":"5.15.0-1032.37"},{"binary_name":"linux-image-unsigned-5.15.0-1032-kvm","binary_version":"5.15.0-1032.37"},{"binary_name":"linux-kvm-headers-5.15.0-1032","binary_version":"5.15.0-1032.37"},{"binary_name":"linux-kvm-tools-5.15.0-1032","binary_version":"5.15.0-1032.37"},{"binary_name":"linux-modules-5.15.0-1032-kvm","binary_version":"5.15.0-1032.37"},{"binary_name":"linux-tools-5.15.0-1032-kvm","binary_version":"5.15.0-1032.37"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6051-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2023-1829","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-2023-1872","severity":[{"score":"CVSS:3.1/AV:L/AC:H/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":"medium","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}