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This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup.", "A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with normal user privilege to cause a denial of service due to a missing sanity check during cleanup."], "mitigation": {"lang": "en:us", "value": "In order to mitigate this issue, prevent the affected code from being loaded by blacklisting the kernel module \"vmxnet3\". For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278\n~~~\nExploiting this flaw will require CAP_NET_ADMIN access privilege in any user or network namespace.\n~~~"}, "name": "CVE-2023-4459", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2022-05-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-4459\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-4459\nhttps://github.com/torvalds/linux/commit/edf410cb74dc612fd47ef5be319c5a0bcd6e6ccd"], "statement": "For the Red Hat Enterprise Linux 8.7 (and higher versions) the patch that resolves the problem already applied (so no need to update then).\nSimilar for the Red Hat Enterprise Linux 9.1 (and higher versions) the patch that resolves the problem already applied. Only Red Hat Enterprise Linux 9.0 affected.", "threat_severity": "Moderate", "upstream_fix": "Kernel 5.18"}