Improper input validation in PHP - #VU16320

 

Improper input validation in PHP - #VU16320

Published: December 7, 2018


Vulnerability identifier: #VU16320
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: N/A
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 attacker to cause DoS condition on the target system.

The weakness exists due to an error if response headers have been already sent or when calling session_id($id) before session_start(). A remote attacker can send response headers and cause the service to crash.

Remediation

Update to version 7.3.0.

Sources