{"id":"USN-8643-5","summary":"linux-azure-6.8, linux-ibm, linux-ibm-6.8, linux-oracle-6.8, linux-raspi, linux-raspi-realtime vulnerabilities","details":"Several security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - Network drivers;\n  - Open vSwitch;\n  - SCTP protocol;\n(CVE-2026-53224, CVE-2026-53246, CVE-2026-53247, CVE-2026-64531)\n","modified":"2026-08-31T17:26:23.706565562Z","published":"2026-08-27T21:29:15Z","related":["UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-53247","UBUNTU-CVE-2026-64531"],"upstream":["CVE-2026-53224","CVE-2026-53246","CVE-2026-53247","CVE-2026-64531","UBUNTU-CVE-2026-53224","UBUNTU-CVE-2026-53246","UBUNTU-CVE-2026-53247","UBUNTU-CVE-2026-64531"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8643-5"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53224"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53246"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53247"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-64531"}],"affected":[{"package":{"name":"linux-azure-6.8","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/linux-azure-6.8?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1065.73~22.04.1"}]}],"versions":["6.8.0-1008.8~22.04.1","6.8.0-1009.9~22.04.1","6.8.0-1010.10~22.04.1","6.8.0-1012.14~22.04.1","6.8.0-1013.15~22.04.1","6.8.0-1014.16~22.04.1","6.8.0-1015.17~22.04.2","6.8.0-1017.20~22.04.1","6.8.0-1018.21~22.04.1","6.8.0-1020.23~22.04.1","6.8.0-1021.25~22.04.1","6.8.0-1025.30~22.04.1","6.8.0-1026.31~22.04.1","6.8.0-1027.32~22.04.1","6.8.0-1028.33~22.04.1","6.8.0-1029.34~22.04.1","6.8.0-1030.35~22.04.1","6.8.0-1031.36~22.04.1","6.8.0-1034.39~22.04.1","6.8.0-1036.42~22.04.1","6.8.0-1040.46~22.04.1","6.8.0-1041.47~22.04.1","6.8.0-1044.50~22.04.1","6.8.0-1051.57~22.04.1","6.8.0-1052.58~22.04.1","6.8.0-1059.65~22.04.1","6.8.0-1062.69~22.04.1","6.8.0-1063.71~22.04.1","6.8.0-1064.72~22.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"linux-azure-6.8-cloud-tools-6.8.0-1065","binary_version":"6.8.0-1065.73~22.04.1"},{"binary_version":"6.8.0-1065.73~22.04.1","binary_name":"linux-azure-6.8-headers-6.8.0-1065"},{"binary_name":"linux-azure-6.8-tools-6.8.0-1065","binary_version":"6.8.0-1065.73~22.04.1"},{"binary_name":"linux-buildinfo-6.8.0-1065-azure","binary_version":"6.8.0-1065.73~22.04.1"},{"binary_version":"6.8.0-1065.73~22.04.1","binary_name":"linux-cloud-tools-6.8.0-1065-azure"},{"binary_name":"linux-headers-6.8.0-1065-azure","binary_version":"6.8.0-1065.73~22.04.1"},{"binary_name":"linux-image-unsigned-6.8.0-1065-azure","binary_version":"6.8.0-1065.73~22.04.1"},{"binary_name":"linux-modules-6.8.0-1065-azure","binary_version":"6.8.0-1065.73~22.04.1"},{"binary_version":"6.8.0-1065.73~22.04.1","binary_name":"linux-modules-extra-6.8.0-1065-azure"},{"binary_name":"linux-modules-involflt-6.8.0-1065-azure","binary_version":"6.8.0-1065.73~22.04.1"},{"binary_name":"linux-modules-iwlwifi-6.8.0-1065-azure","binary_version":"6.8.0-1065.73~22.04.1"},{"binary_name":"linux-tools-6.8.0-1065-azure","binary_version":"6.8.0-1065.73~22.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8643-5.json","cves_map":{"cves":[{"id":"CVE-2026-53224","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2026-53246","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-53247","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-64531","severity":[{"score":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","type":"CVSS_V4"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}],"ecosystem":"Ubuntu:22.04:LTS"}}},{"package":{"name":"linux-ibm-6.8","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/linux-ibm-6.8?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1063.64~22.04.1"}]}],"versions":["6.8.0-1008.8~22.04.1","6.8.0-1010.10~22.04.1","6.8.0-1011.11~22.04.1","6.8.0-1012.12~22.04.1","6.8.0-1013.13~22.04.1","6.8.0-1014.14~22.04.1","6.8.0-1015.15~22.04.1","6.8.0-1016.16~22.04.1","6.8.0-1017.17~22.04.1","6.8.0-1018.18~22.04.1","6.8.0-1019.19~22.04.1","6.8.0-1023.23~22.04.1","6.8.0-1024.24~22.04.1","6.8.0-1025.25~22.04.1","6.8.0-1026.26~22.04.1","6.8.0-1027.27~22.04.1","6.8.0-1028.28~22.04.1","6.8.0-1029.29~22.04.1","6.8.0-1030.30~22.04.1","6.8.0-1033.33~22.04.1","6.8.0-1036.36~22.04.1","6.8.0-1037.37~22.04.1","6.8.0-1038.38~22.04.1","6.8.0-1039.39~22.04.1","6.8.0-1040.40~22.04.1","6.8.0-1041.41~22.04.1","6.8.0-1042.42~22.04.1","6.8.0-1043.43~22.04.1","6.8.0-1044.44~22.04.1","6.8.0-1045.45~22.04.1","6.8.0-1049.49~22.04.1","6.8.0-1050.50~22.04.1","6.8.0-1051.51~22.04.1","6.8.0-1052.52~22.04.1","6.8.0-1055.56~22.04.1","6.8.0-1057.58~22.04.1","6.8.0-1060.61~22.04.1","6.8.0-1061.62~22.04.1","6.8.0-1062.63~22.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"linux-buildinfo-6.8.0-1063-ibm","binary_version":"6.8.0-1063.64~22.04.1"},{"binary_version":"6.8.0-1063.64~22.04.1","binary_name":"linux-headers-6.8.0-1063-ibm"},{"binary_name":"linux-ibm-6.8-headers-6.8.0-1063","binary_version":"6.8.0-1063.64~22.04.1"},{"binary_name":"linux-ibm-6.8-tools-6.8.0-1063","binary_version":"6.8.0-1063.64~22.04.1"},{"binary_name":"linux-image-unsigned-6.8.0-1063-ibm","binary_version":"6.8.0-1063.64~22.04.1"},{"binary_version":"6.8.0-1063.64~22.04.1","binary_name":"linux-modules-6.8.0-1063-ibm"},{"binary_version":"6.8.0-1063.64~22.04.1","binary_name":"linux-modules-extra-6.8.0-1063-ibm"},{"binary_name":"linux-modules-iwlwifi-6.8.0-1063-ibm","binary_version":"6.8.0-1063.64~22.04.1"},{"binary_version":"6.8.0-1063.64~22.04.1","binary_name":"linux-tools-6.8.0-1063-ibm"}],"availability":"No 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