{"id":"CVE-2026-98077","revision":"fe445f39271744df833a47a71ec84dd3","records":[{"revision":"fe445f39271744df833a47a71ec84dd3","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98077","aliases":[],"title":"netfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace()\n\nsip_skip_whitespace() returns dptr unchanged when its own loop\nexhausts the buffer (dptr == limit), instead of NULL like its sibling\nsip_follow_continuation() returns on its own \"no more data\" path.\n\nct_sip_get_header() only checks for NULL after calling it:\n\n  dptr = sip_skip_whitespace(dptr, limit);\n  if (dptr == NULL)\n          break;\n  if (*dptr != ':' || ++dptr >= limit)\n          break;\n\nso a recognized header name followed only by spaces/tabs running to\nthe exact end of the SIP payload, with no colon, makes the very next\nstatement read one byte past the buffer.\n\nMake both \"no more data\" outcomes return NULL, matching the\nconvention sip_follow_continuation() already uses and that both\nexisting callers already check for.","state":0,"publishedAt":"2026-09-25T10:24:15.691+00:00","modifiedAt":"2026-10-19T09:13:26.849+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                        \"net/netfilter/nf_conntrack_sip.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"ea45f12a2766dae54e5426a23e8f4bafdbe2782e\",\n                            \"lessThan\": \"9ae0a87e6f513293677fe286729fbae34d592215\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ea45f12a2766dae54e5426a23e8f4bafdbe2782e\",\n                            \"lessThan\": \"b6277622b7323000895b674321c9a1f060553188\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ea45f12a2766dae54e5426a23e8f4bafdbe2782e\",\n                            \"lessThan\": \"0cfb96a118c5c6d46d7a1cfdfa18355ad734ca79\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ea45f12a2766dae54e5426a23e8f4bafdbe2782e\",\n                            \"lessThan\": \"c6beb08b1a9fdb96795816d8329ed75dd785d48e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ea45f12a2766dae54e5426a23e8f4bafdbe2782e\",\n                            \"lessThan\": \"60c012b2d05e1558b0f30ea3f15a2c3ca2f24d94\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ea45f12a2766dae54e5426a23e8f4bafdbe2782e\",\n                            \"lessThan\": \"4be8380e3af008f418f97992c06f23be649a430d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ea45f12a2766dae54e5426a23e8f4bafdbe2782e\",\n                            \"lessThan\": \"4a30aa2ba007db18210dd52219ecbd5528c03523\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ea45f12a2766dae54e5426a23e8f4bafdbe2782e\",\n                            \"lessThan\": \"e8f8231824b5815f57ce62cba116e511b10196de\",\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                        \"net/netfilter/nf_conntrack_sip.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.26\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.26\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/9ae0a87e6f513293677fe286729fbae34d592215","https://git.kernel.org/stable/c/b6277622b7323000895b674321c9a1f060553188","https://git.kernel.org/stable/c/0cfb96a118c5c6d46d7a1cfdfa18355ad734ca79","https://git.kernel.org/stable/c/c6beb08b1a9fdb96795816d8329ed75dd785d48e","https://git.kernel.org/stable/c/60c012b2d05e1558b0f30ea3f15a2c3ca2f24d94","https://git.kernel.org/stable/c/4be8380e3af008f418f97992c06f23be649a430d","https://git.kernel.org/stable/c/4a30aa2ba007db18210dd52219ecbd5528c03523","https://git.kernel.org/stable/c/e8f8231824b5815f57ce62cba116e511b10196de"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98077","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98077","identifiers":["CVE-2026-98077"]},"retained":false,"historicalAffected":[]}],"coverage":[]}