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6.5 Moyenne

CVE-2026-91767 php_openssl_matches_wildcard_name() in ext/openssl/xp_ssl.c underflows the length argument passed to memchr() when a TLS…

Description

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.

Produits et versions touchés

Produit Versions touchées Corrigé en
PHP 8.5 premières → < 8.5.11 8.5.11
PHP 8.4 premières → < 8.4.26 8.4.26
PHP 8.3 premières → < 8.3.35 8.3.35
PHP 8.2 premières → < 8.2.34 8.2.34

Références

Chronologie

  1. Publiée
  2. Dernière modification

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