SB2012011004 - Input validation error in php (Alpine package)
Published: January 10, 2012
Security Bulletin ID
SB2012011004
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2011-4885)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
PHP before 5.3.9 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
Remediation
Install update from vendor's website.