Input validation error in PHP - CVE-2010-4657

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Main Vulnerability Database Vulnerabilities #VU35071

Input validation error in PHP - CVE-2010-4657

Published: November 13, 2019 / Updated: August 8, 2020


Vulnerability identifier: #VU35071
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2010-4657
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: PHP Group
Affected software:
PHP

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

PHP5 before 5.4.4 allows passing invalid utf-8 strings via the xmlTextWriterWriteAttribute, which are then misparsed by libxml2. This results in memory leak into the resulting output.


How to mitigate CVE-2010-4657

Install update from vendor's website.

Sources