{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-1281", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "state": "PUBLISHED", "assignerShortName": "Google", "dateReserved": "2023-03-08T20:18:23.204Z", "datePublished": "2023-03-22T13:18:55.460Z", "dateUpdated": "2025-02-13T16:39:20.235Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageName": "kernel", "product": "Linux Kernel", "repo": "https://git.kernel.org", "vendor": "Linux", "versions": [{"lessThanOrEqual": "6.2", "status": "affected", "version": "4.14", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "valis"}], "datePublic": "2023-02-09T15:37:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation.&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext.</span>&nbsp;<span style=\"background-color: var(--wht);\">A local attacker user can use this vulnerability to elevate its privileges to root.<br></span><p>This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2.</p>"}], "value": "Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation.\u00a0The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext.\u00a0A local attacker user can use this vulnerability to elevate its privileges to root.\nThis issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2."}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 Privilege Escalation"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-416", "description": "CWE-416 Use After Free", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google", "dateUpdated": "2023-05-03T13:06:53.041Z"}, "references": [{"url": "https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2"}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2"}, {"url": "http://www.openwall.com/lists/oss-security/2023/04/11/3"}, {"url": "https://security.netapp.com/advisory/ntap-20230427-0004/"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html"}], "source": {"discovery": "EXTERNAL"}, "title": "UAF in Linux kernel's tcindex (traffic control index filter) implementation", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T05:40:59.846Z"}, "title": "CVE Program Container", "references": [{"url": "https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2", "tags": ["x_transferred"]}, {"url": "http://www.openwall.com/lists/oss-security/2023/04/11/3", "tags": ["x_transferred"]}, {"url": "https://security.netapp.com/advisory/ntap-20230427-0004/", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html", "tags": ["x_transferred"]}]}]}}

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"package": "kernel-0:4.18.0-372.64.1.el8_6", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 8", "release_date": "2023-07-18T00:00:00Z"}], "bugzilla": {"description": "kernel: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation", "id": "2181847", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2181847"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation.\u00a0The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext.\u00a0A local attacker user can use this vulnerability to elevate its privileges to root.\nThis issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2.", "A use-after-free vulnerability was found in the traffic control index filter (tcindex) in the Linux kernel. The imperfect hash area can be updated while packets are traversing. This issue could allow a local attacker to cause a use-after-free problem, leading to privilege escalation."], "mitigation": {"lang": "en:us", "value": "This flaw can be mitigated by preventing the affected traffic control index filter (cls_tcindex) kernel module from loading during the boot time, ensure the module is added into the blacklist file.\n~~~\nRefer: \nHow do I blacklist a kernel module to prevent it from loading automatically? \nhttps://access.redhat.com/solutions/41278\n~~~"}, "name": "CVE-2023-1281", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2023-02-23T06:30:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-1281\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-1281\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2"], "statement": "For the Red Hat Enterprise Linux 7, please use mitigation to disable module cls_tcindex, because some other bugs exists in the Linux Kernel traffic control index filter too that not going to be fixed before Red Hat Enterprise Linux 8.", "threat_severity": "Important", "upstream_fix": "Kernel 6.2 RC16"}