Input validation error in PHP - CVE-2007-1711

 

Input validation error in PHP - CVE-2007-1711

Published: October 16, 2018 / Updated: June 13, 2025


Vulnerability identifier: #VU110426
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2007-1711
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Double free vulnerability in the unserializer in PHP 4.4.5 and 4.4.6 allows context-dependent attackers to execute arbitrary code by overwriting variables pointing to (1) the GLOBALS array or (2) the session data in _SESSION. NOTE: this issue was introduced when attempting to patch CVE-2007-1701 (MOPB-31-2007).


Affected software

PHP
Gentoo Linux
dev-lang/php

How to mitigate CVE-2007-1711

Install update from vendor's website.

PHP - update to 4.4.7
dev-lang/php - update to 5.2.2

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins