| Package | Affected versions | Patched versions |
|---|---|---|
| php | ≥ 8.2.0, < 8.2.34≥ 8.3.0, < 8.3.35≥ 8.4.0, < 8.4.26≥ 8.5.0, < 8.5.11 | 8.2.348.3.358.4.268.5.11 |
php_openssl_matches_wildcard_name() in ext/openssl/xp_ssl.c underflows the length argument passed to memchr() when a TLS server certificate presents a wildcard name whose literal characters are together longer than the hostname being verified. A malicious server presenting such a certificate makes the PHP client read up to SIZE_MAX bytes past the end of a heap allocation. The path is reachable from any default client stream, because verify_peer_name is enabled by default.
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