#VU225 A read/write access error in gdImageTrueColorToPaletteBody() in PHP - CVE-2016-5114
Published: July 27, 2016 / Updated: August 13, 2016
Vulnerability identifier: #VU225
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-5114
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PHP
PHP
Software vendor:
PHP Group
PHP Group
Description
The vulnerability allows a remote attacker to disclose potentially sensitive information.
The vulnerability exists due to gdImageTrueColorToPaletteBody() function doesn't check for negative transparent colors while converting the image. A remote unauthenticated attacker can cause a read/write access error in gdImageTrueColorToPaletteBody().
Successful exploitation of this vulnerability may lead to arbitrary NULL-byte write and disclosure of potentially sensitive data.
Remediation
Install the latest versions: (5.5.38, 5.6.24, 7.0.9).