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{"bugzilla": {"description": "kernel: sysctl: Fix out of bounds access for empty sysctl registers", "id": "2268313", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2268313"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nsysctl: Fix out of bounds access for empty sysctl registers\nWhen registering tables to the sysctl subsystem there is a check to see\nif header is a permanently empty directory (used for mounts). This check\nevaluates the first element of the ctl_table. This results in an out of\nbounds evaluation when registering empty directories.\nThe function register_sysctl_mount_point now passes a ctl_table of size\n1 instead of size 0. It now relies solely on the type to identify\na permanently empty register.\nMake sure that the ctl_table has at least one element before testing for\npermanent emptiness.", "An out of bounds access flaw was found in empty sysctl registers in the Linux kernel. This may lead to a crash."], "name": "CVE-2023-52596", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"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": "2024-03-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52596\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52596\nhttps://lore.kernel.org/linux-cve-announce/2024030645-CVE-2023-52596-b98e@gregkh/T"], "statement": "Red Hat has protection mechanisms in place against buffer overflows such as FORTIFY_SOURCE, Position Independent Executables, or Stack Smashing Protection.", "threat_severity": "Moderate"}