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CVE-2026-91767

Опубликовано: 25 сент. 2026
Источник: debian

Описание

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.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
php8.4fixed8.4.26-1package
php8.2removedpackage

Примечания

  • https://github.com/php/php-src/security/advisories/GHSA-xr7j-rvgx-xq5p

  • https://github.com/php/php-src/blob/php-8.4.26/NEWS

Связанные уязвимости

CVSS3: 6.5
ubuntu
9 дней назад

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.

CVSS3: 6.5
redhat
9 дней назад

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.

CVSS3: 6.5
nvd
9 дней назад

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.

CVSS3: 6.5
msrc
7 дней назад

Heap-buffer-overflow in php_openssl_matches_wildcard_name on crafted server cert wildcard CN

CVSS3: 6.5
github
10 дней назад

Heap-buffer-overflow in php_openssl_matches_wildcard_name on crafted server cert wildcard CN