CVE-2016-7398

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-09-06 · updated 2026-06-17
Weakness: CWE-704

Description

A type confusion vulnerability in the merge_param() function of php_http_params.c in PHP's pecl-http extension 3.1.0beta2 (PHP 7) and earlier as well as 2.6.0beta2 (PHP 5) and earlier allows attackers to crash PHP and possibly execute arbitrary code via crafted HTTP requests.

Affected products

php Ext-Http: through 2.5.6; from 3.0.0 through 3.0.1; 2.6.0, 2.6.0-beta1, 2.6.0-beta2, 2.6.0-rc1, 3.1.0, 3.1.0-beta1 (+2)

References

https://bugs.php.net/bug.php?id=73055
https://bugs.php.net/bug.php?id=73055&edit=1
https://github.com/m6w6/ext-http/commit/17137d4ab1ce81a2cee0fae842340a344ef3da83
https://lists.debian.org/debian-lts-announce/2019/09/msg00022.html
https://bugs.php.net/bug.php?id=73055
https://bugs.php.net/bug.php?id=73055&edit=1
https://github.com/m6w6/ext-http/commit/17137d4ab1ce81a2cee0fae842340a344ef3da83
https://lists.debian.org/debian-lts-announce/2019/09/msg00022.html

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