{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2023-0160", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2023-01-10T16:03:54.488Z", "datePublished": "2023-07-18T16:08:23.653Z", "dateUpdated": "2024-09-26T19:33:49.046Z" }, "containers": { "cna": { "title": "Possibility of deadlock in libbpf function sock_hash_delete_elem", "metrics": [ { "other": { "content": { "value": "Low", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "A deadlock flaw was found in the Linux kernel’s BPF subsystem. This flaw allows a local user to potentially crash the system." } ], "affected": [ { "product": "kernel", "vendor": "n/a", "versions": [ { "version": "6.4-rc1", "status": "unaffected" } ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel", "defaultStatus": "unaffected", "cpes": [ "cpe:/o:redhat:enterprise_linux:6" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel", "defaultStatus": "unaffected", "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel-rt", "defaultStatus": "unaffected", "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel", "defaultStatus": "unaffected", "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel-rt", "defaultStatus": "unaffected", "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel", "defaultStatus": "unaffected", "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "kernel-rt", "defaultStatus": "unaffected", "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ] }, { "product": "Fedora", "vendor": "Fedora", "collectionURL": "https://packages.fedoraproject.org/", "packageName": "kernel", "defaultStatus": "affected" } ], "references": [ { "url": "https://access.redhat.com/security/cve/CVE-2023-0160", "tags": [ "vdb-entry", "x_refsource_REDHAT" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2159764", "name": "RHBZ#2159764", "tags": [ "issue-tracking", "x_refsource_REDHAT" ] }, { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ed17aa92dc56" }, { "url": "https://lore.kernel.org/all/CABcoxUayum5oOqFMMqAeWuS8+EzojquSOSyDA3J_2omY=2EeAg@mail.gmail.com/" } ], "datePublic": "2023-03-12T00:00:00Z", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-833", "description": "Deadlock", "lang": "en", "type": "CWE" } ] } ], "x_redhatCweChain": "CWE-833: Deadlock", "workarounds": [ { "lang": "en", "value": "The default Red Hat Enterprise Linux kernel prevents unprivileged users from being able to use eBPF by the kernel.unprivileged_bpf_disabled sysctl. \n\nThis would require a privileged user with CAP_SYS_ADMIN or root to be able to abuse this flaw reducing its attack space.\n\nFor the Red Hat Enterprise Linux 7 the eBPF for unprivileged users is always disabled.\nFor the Red Hat Enterprise Linux 8 or 9 to confirm the current state, inspect the sysctl with the command:\n\n# cat /proc/sys/kernel/unprivileged_bpf_disabled\n\nThe setting of 1 would mean that unprivileged users cannot use eBPF, mitigating the flaw.\n\nA kernel update will be required to mitigate the flaw for the root or users with CAP_SYS_ADMIN capabilities.\n\nNote: A fix for this CVE may be backported as a part of one of the future BPF subsystem rebases." } ], "timeline": [ { "lang": "en", "time": "2022-12-05T00:00:00Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2023-03-12T00:00:00Z", "value": "Made public." } ], "credits": [ { "lang": "en", "value": "Red Hat would like to thank Hsin-Wei Hung (University of California, Irvine) for reporting this 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"2024-09-26T19:33:35.695707Z", "id": "CVE-2023-0160", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-26T19:33:49.046Z" } } ] } }