CVE-2023-1281

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"2023-07-25T00:00:00Z"}, {"advisory": "RHSA-2023:4256", "cpe": "cpe:/o:redhat:rhel_e4s:8.4", "package": "kernel-0:4.18.0-305.97.1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2023-07-25T00:00:00Z"}, {"advisory": "RHSA-2023:4262", "cpe": "cpe:/o:redhat:rhel_e4s:8.4", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2023-07-25T00:00:00Z"}, {"advisory": "RHSA-2023:4130", "cpe": "cpe:/o:redhat:rhel_eus:8.6", "package": "kernel-0:4.18.0-372.64.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2023-07-18T00:00:00Z"}, {"advisory": "RHSA-2023:4145", "cpe": "cpe:/o:redhat:rhel_eus:8.6", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2023-07-18T00:00:00Z"}, {"advisory": "RHSA-2023:4130", "cpe": "cpe:/o:redhat:rhev_hypervisor:4.4::el8", "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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "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"}

{}