Description (CNA)
The TLS 1.3 Certificate-message parser in NetX Secure decrements the message length to skip a context byte without first establishing that the message has a byte to skip. A zero-length Certificate message therefore wraps the unsigned length to `0xFFFFFFFF`, which makes the bounds check that follows vacuous and sends the parser reading past the session packet buffer. The trigger is a four-byte handshake header and requires no cryptographic validity. It is reachable pre-authentication.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Eclipse Foundation / Eclipse ThreadX - NetX Duo | affected 0 through 6.5.1.202602; unaffected 6.5.2.202603 |
CWE
CWE-125, CWE-191
References
ADP enrichment
No English description supplied.
No references supplied.