CVEs-PoC/2017/CVE-2017-12932.md

CVE-2017-12932

Description

ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

POC

Reference

• https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
• https://github.com/php/php-src/commit/1a23ebc1fff59bf480ca92963b36eba5c1b904c4
• https://hackerone.com/reports/261335
• https://hackerone.com/reports/261335

Github

• https://github.com/ARPSyndicate/cvemon