CVE-2026-101302 Details
Description
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. A remote TLS 1.3 peer can send a specially crafted record to trigger a kernel panic, resulting in a Denial of Service (DoS).
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://security.freebsd.org/advisories/FreeBSD-SA-26:67.ktls.asc | [email protected] | MitigationPatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-193 | Off-by-one Error | [email protected] |
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| freebsd freebsd | 14.4 - 14.4 p1 14.4 p2 14.4 p3 14.4 p4 14.4 p5 14.4 p6 14.4 p7 14.4 p8 14.4 p9 14.5 - 15.0 - 15.0 p1 15.0 p10 15.0 p11 15.0 p12 15.0 p13 15.0 p2 15.0 p3 15.0 p4 15.0 p5 15.0 p6 15.0 p7 15.0 p8 15.0 p9 15.1 - 15.1 p1 15.1 p2 15.1 p3 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 20, 2026 | Initial Analysis | [email protected] |
| Oct 15, 2026 | CVE Modified | CISA-ADP |
| Oct 15, 2026 | New CVE Received | [email protected] |