#VU9956 Deserialization of untrusted data in PHP - CVE-2017-12933

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Main Vulnerability Database Vulnerabilities #VU9956

#VU9956 Deserialization of untrusted data in PHP - CVE-2017-12933

Published: January 9, 2018 / Updated: January 11, 2018


Vulnerability identifier: #VU9956
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-12933
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
PHP
Software vendor:
PHP Group

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a buffer over-read while unserializing untrusted data in the finish_nested_data function in ext/standard/var_unserializer.re. A remote attacker can perform a denial of service attack.



Remediation

The vendor has issued the following versions to address this vulnerability: 5.6.31, 7.0.21, 7.1.7.

External links