{"id":"CVE-2023-53033","summary":"netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits\n\nIf the offset + length goes over the ethernet + vlan header, then the\nlength is adjusted to copy the bytes that are within the boundaries of\nthe vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet +\nvlan header are copied directly from the skbuff data area.\n\nFix incorrect arithmetic operator: subtract, not add, the size of the\nvlan header in case of double-tagged packets to adjust the length\naccordingly to address CVE-2023-0179.","modified":"2026-04-02T09:43:34.868413Z","published":"2025-03-27T16:44:01.044Z","related":["SUSE-SU-2025:01633-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1195-1","SUSE-SU-2025:1241-1","SUSE-SU-2025:1574-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53033.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/550efeff989b041f3746118c0ddd863c39ddc1aa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a8acfe2c6fb99f9375a9325807a179cd8c32e6e3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53033.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53033"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f6ae9f120dada00abfb47313364c35118469455f"},{"fixed":"550efeff989b041f3746118c0ddd863c39ddc1aa"},{"fixed":"a8acfe2c6fb99f9375a9325807a179cd8c32e6e3"},{"fixed":"76ef74d4a379faa451003621a84e3498044e7aa3"},{"fixed":"696e1a48b1a1b01edad542a1ef293665864a4dd0"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53033.json"}}],"schema_version":"1.7.5"}