CVE-2026-101302

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).

Score
CVSS 3.1 6.5 Medium
Status
Analyzed - secteam@freebsd.org
Published
2026-10-15
Last modified
2026-10-20
Weaknesses
CWE-193, CWE-476

Affected products

References

 
 
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