In function MatchDomainName(), input param str is treated as a NULL terminated string despite being user provided and unchecked. Specifically, the function X509_check_host() takes in a pointer and length to check against, with no requirements that it be NULL terminated. If a caller was attempting to do a name check on a non-NULL terminated buffer, the code would read beyond the bounds of the input array until it found a NULL terminator.This issue affects wolfSSL: through 5.7.0.
Solution:
The product reads data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://https://github.com/wolfSSL/wolfssl/pull/7604 | broken link |
| https://github.com/wolfSSL/wolfssl/pull/7604 | issue tracking patch |