{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-101302", "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "state": "PUBLISHED", "assignerShortName": "freebsd", "dateReserved": "2026-09-28T13:33:02.323Z", "datePublished": "2026-10-15T06:53:12.242Z", "dateUpdated": "2026-10-15T13:55:00.760Z" }, "containers": { "cna": { "datePublic": "2026-09-29T20:30:00.000Z", "title": "Remote DoS via receive-side kernel TLS", "references": [ { "tags": [ "vendor-advisory" ], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:67.ktls.asc" } ], "affected": [ { "defaultStatus": "unknown", "modules": [ "ktls" ], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [ { "status": "affected", "versionType": "release", "version": "15.1-RELEASE", "lessThan": "p4" }, { "status": "affected", "versionType": "release", "version": "15.0-RELEASE", "lessThan": "p14" }, { "status": "affected", "versionType": "release", "version": "14.5-RELEASE", "lessThan": "p1" }, { "status": "affected", "versionType": "release", "version": "14.4-RELEASE", "lessThan": "p10" } ] } ], "credits": [ { "lang": "en", "type": "finder", "value": "Mark Johnston" } ], "descriptions": [ { "lang": "en", "value": "TLS 1.3 embeds the actual record type as the last non-zero byte of the decrypted payload, optionally followed by zero padding. The code which searches for the inner record type had an off-by-one bug which could be triggered by an invalid frame, leading to an underflow followed by an unconditional NULL pointer dereference, causing a kernel panic.\n\nA remote TLS 1.3 peer can send a specially crafted record to trigger a kernel panic, resulting in a Denial of Service (DoS)." } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-193", "description": "CWE-193: Off-by-one Error", "lang": "en", "type": "CWE" }, { "cweId": "CWE-476", "description": "CWE-476: NULL Pointer Dereference", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "shortName": "freebsd", "dateUpdated": "2026-10-15T06:53:12.242Z" }, "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-15T13:54:51.888489Z", "id": "CVE-2026-101302", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T13:55:00.760Z" } } ] } }