{"id":"CVE-2023-53680","revision":"ab09c6db03194d88b98e86ce0388a310","records":[{"revision":"ab09c6db03194d88b98e86ce0388a310","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-53680","aliases":[],"title":"NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL\n\nOPDESC() simply indexes into nfsd4_ops[] by the op's operation\nnumber, without range checking that value. It assumes callers are\ncareful to avoid calling it with an out-of-bounds opnum value.\n\nnfsd4_decode_compound() is not so careful, and can invoke OPDESC()\nwith opnum set to OP_ILLEGAL, which is 10044 -- well beyond the end\nof nfsd4_ops[].","state":0,"publishedAt":"2025-10-07T15:21:34.626+00:00","modifiedAt":"2026-10-15T21:41:33.489+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/nfsd/nfs4xdr.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8\",\n                            \"lessThan\": \"50827896c365e0f6c8b55ed56d444dafd87c92c5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8\",\n                            \"lessThan\": \"a64160124d5a078be0c380b1e8a0bad2d040d3a1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8\",\n                            \"lessThan\": \"ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8\",\n                            \"lessThan\": \"f352c41fa718482979e7e6b71b4da2b718e381cc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8\",\n                            \"lessThan\": \"804d8e0a6e54427268790472781e03bc243f4ee3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/nfsd/nfs4xdr.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.14\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.220\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.107\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.24\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.2.11\",\n                            \"lessThanOrEqual\": \"6.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/50827896c365e0f6c8b55ed56d444dafd87c92c5","https://git.kernel.org/stable/c/a64160124d5a078be0c380b1e8a0bad2d040d3a1","https://git.kernel.org/stable/c/ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e","https://git.kernel.org/stable/c/f352c41fa718482979e7e6b71b4da2b718e381cc","https://git.kernel.org/stable/c/804d8e0a6e54427268790472781e03bc243f4ee3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53680","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-53680","identifiers":["CVE-2023-53680"]},"retained":false,"historicalAffected":[]}],"coverage":[]}