{"id":"USN-6442-1","summary":"linux-bluefield vulnerabilities","details":"Ross Lagerwall discovered that the Xen netback backend driver in the Linux\nkernel did not properly handle certain unusual packets from a\nparavirtualized network frontend, leading to a buffer overflow. An attacker\nin a guest VM could use this to cause a denial of service (host system\ncrash) or possibly execute arbitrary code. (CVE-2023-34319)\n\nIt was discovered that the netfilter subsystem in the Linux kernel did not\nproperly handle PIPAPO element removal, leading to a use-after-free\nvulnerability. A local attacker could possibly use this to cause a denial\nof service (system crash) or execute arbitrary code. (CVE-2023-4004)\n\nKyle Zeng discovered that the networking stack implementation in the Linux\nkernel did not properly validate skb object size in certain conditions. An\nattacker could use this cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2023-42752)\n\nKyle Zeng discovered that the netfiler subsystem in the Linux kernel did\nnot properly calculate array offsets, leading to a out-of-bounds write\nvulnerability. A local user could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2023-42753)\n\nKyle Zeng discovered that the IPv4 Resource Reservation Protocol (RSVP)\nclassifier implementation in the Linux kernel contained an out-of-bounds\nread vulnerability. A local attacker could use this to cause a denial of\nservice (system crash). Please note that kernel packet classifier support\nfor RSVP has been removed to resolve this vulnerability. (CVE-2023-42755)\n\nKyle Zeng discovered that the netfilter subsystem in the Linux kernel\ncontained a race condition in IP set operations in certain situations. A\nlocal attacker could use this to cause a denial of service (system crash).\n(CVE-2023-42756)\n\nBing-Jhong Billy Jheng discovered that the Unix domain socket\nimplementation in the Linux kernel contained a race condition in certain\nsituations, leading to a use-after-free vulnerability. A local attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2023-4622)\n\nBudimir Markovic discovered that the qdisc implementation in the Linux\nkernel did not properly validate inner classes, leading to a use-after-free\nvulnerability. A local user could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2023-4623)\n\nAlex Birnberg discovered that the netfilter subsystem in the Linux kernel\ndid not properly validate register length, leading to an out-of- bounds\nwrite vulnerability. A local attacker could possibly use this to cause a\ndenial of service (system crash). (CVE-2023-4881)\n\nIt was discovered that the Quick Fair Queueing scheduler implementation in\nthe Linux kernel did not properly handle network packets in certain\nconditions, leading to a use after free vulnerability. A local attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2023-4921)\n\n","modified":"2026-04-27T17:02:17.509078540Z","published":"2023-10-19T20:17:02Z","related":["UBUNTU-CVE-2023-34319","UBUNTU-CVE-2023-4004","UBUNTU-CVE-2023-42752","UBUNTU-CVE-2023-42753","UBUNTU-CVE-2023-42755","UBUNTU-CVE-2023-42756","UBUNTU-CVE-2023-4622","UBUNTU-CVE-2023-4623","UBUNTU-CVE-2023-4881","UBUNTU-CVE-2023-4921"],"upstream":["CVE-2023-34319","CVE-2023-4004","CVE-2023-42752","CVE-2023-42753","CVE-2023-42755","CVE-2023-42756","CVE-2023-4622","CVE-2023-4623","CVE-2023-4881","CVE-2023-4921","UBUNTU-CVE-2023-34319","UBUNTU-CVE-2023-4004","UBUNTU-CVE-2023-42752","UBUNTU-CVE-2023-42753","UBUNTU-CVE-2023-42755","UBUNTU-CVE-2023-42756","UBUNTU-CVE-2023-4622","UBUNTU-CVE-2023-4623","UBUNTU-CVE-2023-4881","UBUNTU-CVE-2023-4921"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6442-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4004"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4622"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4623"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4881"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4921"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-34319"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-42752"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-42753"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-42755"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-42756"}],"affected":[{"package":{"name":"linux-bluefield","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-bluefield@5.4.0-1073.79?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1073.79"}]}],"versions":["5.4.0-1007.10","5.4.0-1011.14","5.4.0-1012.15","5.4.0-1013.16","5.4.0-1016.19","5.4.0-1019.22","5.4.0-1020.23","5.4.0-1021.24","5.4.0-1022.25","5.4.0-1023.26","5.4.0-1025.28","5.4.0-1026.29","5.4.0-1028.31","5.4.0-1030.33","5.4.0-1032.35","5.4.0-1035.38","5.4.0-1036.39","5.4.0-1040.44","5.4.0-1042.47","5.4.0-1044.49","5.4.0-1045.50","5.4.0-1046.51","5.4.0-1047.52","5.4.0-1049.55","5.4.0-1050.56","5.4.0-1054.60","5.4.0-1058.64","5.4.0-1059.65","5.4.0-1060.66","5.4.0-1062.68","5.4.0-1064.70","5.4.0-1065.71","5.4.0-1066.72","5.4.0-1068.74","5.4.0-1070.76","5.4.0-1071.77","5.4.0-1072.78"],"ecosystem_specific":{"binaries":[{"binary_version":"5.4.0-1073.79","binary_name":"linux-bluefield-headers-5.4.0-1073"},{"binary_version":"5.4.0-1073.79","binary_name":"linux-bluefield-tools-5.4.0-1073"},{"binary_version":"5.4.0-1073.79","binary_name":"linux-buildinfo-5.4.0-1073-bluefield"},{"binary_version":"5.4.0-1073.79","binary_name":"linux-headers-5.4.0-1073-bluefield"},{"binary_version":"5.4.0-1073.79","binary_name":"linux-image-unsigned-5.4.0-1073-bluefield"},{"binary_version":"5.4.0-1073.79","binary_name":"linux-modules-5.4.0-1073-bluefield"},{"binary_name":"linux-tools-5.4.0-1073-bluefield","binary_version":"5.4.0-1073.79"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6442-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2023-4004","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-2023-4622","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:H/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2023-4623","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-2023-4881","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-2023-4921","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-2023-34319","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":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-42752","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":"high","type":"Ubuntu"}]},{"id":"CVE-2023-42753","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":"high","type":"Ubuntu"}]},{"id":"CVE-2023-42755","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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":"high","type":"Ubuntu"}]},{"id":"CVE-2023-42756","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":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.5"}