CVE-2015-9253

原文の説明

An issue was discovered in PHP 7.3.x before 7.3.0alpha3, 7.2.x before 7.2.8, and before 7.1.20. The php-fpm master process restarts a child process in an endless loop when using program execution functions (e.g., passthru, exec, shell_exec, or system) with a non-blocking STDIN stream, causing this master process to consume 100% of the CPU, and consume disk space with a large volume of error logs, as demonstrated by an attack by a customer of a shared-hosting facility.

影響を受けるソフトウェア

• PHP < 7.1.20= 7.3.0≥ 7.2.0 < 7.2.8 修正バージョン: 7.1.20, 7.2.8 完全一致

詳細

公開日

2018-02-20

最終更新

2024-08-06

CVSS ベクター

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

参考資料

• cve.org/CVE-2015-9253
• nvd.nist.gov/vuln/detail/CVE-2015-9253
• github.com/php/php-src/blob/PHP-7.1.20/NEWS#L20-L22
• bugs.php.net/bug.php?id=70185
• bugs.php.net/bug.php?id=75968
• usn.ubuntu.com/3766-1/
• bugs.php.net/bug.php?id=73342https://github.com/php/php-src/pull/3287
• github.com/php/php-src/commit/69dee5c732fe982c82edb17d0dbc3e79a47748d8
• www.futureweb.at/security/CVE-2015-9253/
• usn.ubuntu.com/4279-1/