{"id":"USN-6726-2","summary":"linux-iot vulnerabilities","details":"Pratyush Yadav discovered that the Xen network backend implementation in\nthe Linux kernel did not properly handle zero length data request, leading\nto a null pointer dereference vulnerability. An attacker in a guest VM\ncould possibly use this to cause a denial of service (host domain crash).\n(CVE-2023-46838)\n\nIt was discovered that the IPv6 implementation of the Linux kernel did not\nproperly manage route cache memory usage. A remote attacker could use this\nto cause a denial of service (memory exhaustion). (CVE-2023-52340)\n\nIt was discovered that the device mapper driver in the Linux kernel did not\nproperly validate target size during certain memory allocations. A local\nattacker could use this to cause a denial of service (system crash).\n(CVE-2023-52429, CVE-2024-23851)\n\nDan Carpenter discovered that the netfilter subsystem in the Linux kernel\ndid not store data in properly sized memory locations. A local user could\nuse this to cause a denial of service (system crash). (CVE-2024-0607)\n\nSeveral 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  - Architecture specifics;\n  - Cryptographic API;\n  - Android drivers;\n  - EDAC drivers;\n  - GPU drivers;\n  - Media drivers;\n  - MTD block device drivers;\n  - Network drivers;\n  - NVME drivers;\n  - TTY drivers;\n  - Userspace I/O drivers;\n  - F2FS file system;\n  - GFS2 file system;\n  - IPv6 Networking;\n  - AppArmor security module;\n(CVE-2023-52464, CVE-2023-52448, CVE-2023-52457, CVE-2023-52443,\nCVE-2023-52439, CVE-2023-52612, CVE-2024-26633, CVE-2024-26597,\nCVE-2023-52449, CVE-2023-52444, CVE-2023-52609, CVE-2023-52469,\nCVE-2023-52445, CVE-2023-52451, CVE-2023-52470, CVE-2023-52454,\nCVE-2023-52436, CVE-2023-52438)\n","modified":"2026-02-10T04:43:40Z","published":"2024-04-16T21:25:54Z","related":["UBUNTU-CVE-2023-46838","UBUNTU-CVE-2023-52340","UBUNTU-CVE-2023-52429","UBUNTU-CVE-2023-52436","UBUNTU-CVE-2023-52438","UBUNTU-CVE-2023-52439","UBUNTU-CVE-2023-52443","UBUNTU-CVE-2023-52444","UBUNTU-CVE-2023-52445","UBUNTU-CVE-2023-52448","UBUNTU-CVE-2023-52449","UBUNTU-CVE-2023-52451","UBUNTU-CVE-2023-52454","UBUNTU-CVE-2023-52457","UBUNTU-CVE-2023-52464","UBUNTU-CVE-2023-52469","UBUNTU-CVE-2023-52470","UBUNTU-CVE-2023-52609","UBUNTU-CVE-2023-52612","UBUNTU-CVE-2024-0607","UBUNTU-CVE-2024-23851","UBUNTU-CVE-2024-26597","UBUNTU-CVE-2024-26633"],"upstream":["CVE-2023-46838","CVE-2023-52340","CVE-2023-52429","CVE-2023-52436","CVE-2023-52438","CVE-2023-52439","CVE-2023-52443","CVE-2023-52444","CVE-2023-52445","CVE-2023-52448","CVE-2023-52449","CVE-2023-52451","CVE-2023-52454","CVE-2023-52457","CVE-2023-52464","CVE-2023-52469","CVE-2023-52470","CVE-2023-52609","CVE-2023-52612","CVE-2024-0607","CVE-2024-23851","CVE-2024-26597","CVE-2024-26633","UBUNTU-CVE-2023-46838","UBUNTU-CVE-2023-52340","UBUNTU-CVE-2023-52429","UBUNTU-CVE-2023-52436","UBUNTU-CVE-2023-52438","UBUNTU-CVE-2023-52439","UBUNTU-CVE-2023-52443","UBUNTU-CVE-2023-52444","UBUNTU-CVE-2023-52445","UBUNTU-CVE-2023-52448","UBUNTU-CVE-2023-52449","UBUNTU-CVE-2023-52451","UBUNTU-CVE-2023-52454","UBUNTU-CVE-2023-52457","UBUNTU-CVE-2023-52464","UBUNTU-CVE-2023-52469","UBUNTU-CVE-2023-52470","UBUNTU-CVE-2023-52609","UBUNTU-CVE-2023-52612","UBUNTU-CVE-2024-0607","UBUNTU-CVE-2024-23851","UBUNTU-CVE-2024-26597","UBUNTU-CVE-2024-26633"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6726-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-46838"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52340"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52429"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52436"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52438"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52439"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52443"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52444"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52445"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52448"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52449"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52451"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52454"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52457"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52464"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52469"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52470"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52609"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-52612"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-0607"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-23851"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-26597"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-26633"}],"affected":[{"package":{"name":"linux-iot","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-iot@5.4.0-1034.35?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1034.35"}]}],"versions":["5.4.0-1001.3","5.4.0-1004.6","5.4.0-1005.7","5.4.0-1006.8","5.4.0-1009.11","5.4.0-1010.12","5.4.0-1011.13","5.4.0-1012.14","5.4.0-1013.15","5.4.0-1014.16","5.4.0-1017.18","5.4.0-1018.19","5.4.0-1019.20","5.4.0-1021.22","5.4.0-1022.23","5.4.0-1023.24","5.4.0-1024.25","5.4.0-1025.26","5.4.0-1026.27","5.4.0-1028.29","5.4.0-1029.30","5.4.0-1030.31","5.4.0-1031.32","5.4.0-1032.33","5.4.0-1033.34"],"ecosystem_specific":{"binaries":[{"binary_version":"5.4.0-1034.35","binary_name":"linux-buildinfo-5.4.0-1034-iot"},{"binary_version":"5.4.0-1034.35","binary_name":"linux-headers-5.4.0-1034-iot"},{"binary_version":"5.4.0-1034.35","binary_name":"linux-image-5.4.0-1034-iot"},{"binary_version":"5.4.0-1034.35","binary_name":"linux-image-unsigned-5.4.0-1034-iot"},{"binary_version":"5.4.0-1034.35","binary_name":"linux-iot-headers-5.4.0-1034"},{"binary_version":"5.4.0-1034.35","binary_name":"linux-iot-tools-5.4.0-1034"},{"binary_version":"5.4.0-1034.35","binary_name":"linux-iot-tools-common"},{"binary_version":"5.4.0-1034.35","binary_name":"linux-modules-5.4.0-1034-iot"},{"binary_version":"5.4.0-1034.35","binary_name":"linux-tools-5.4.0-1034-iot"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6726-2.json","cves_map":{"cves":[{"id":"CVE-2023-46838","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52340","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52429","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"}]},{"id":"CVE-2023-52436","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52438","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52439","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52443","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52444","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52445","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52448","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52449","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52451","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52454","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52457","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52464","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52469","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":"low","type":"Ubuntu"}]},{"id":"CVE-2023-52470","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":"low","type":"Ubuntu"}]},{"id":"CVE-2023-52609","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-52612","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2024-0607","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2024-23851","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"}]},{"id":"CVE-2024-26597","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":"high","type":"Ubuntu"}]},{"id":"CVE-2024-26633","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":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:20.04:LTS"}}}],"schema_version":"1.7.3"}