SB2012071901 - Remote code execution in PHP
Published: July 19, 2012 Updated: January 11, 2017
Security Bulletin ID
SB2012071901
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer underflow (CVE-ID: CVE-2012-2688)
The vulnerability allows a remote attacker to cause DoS conditions or execute arbitrary code on the target system.The weakness exists due to heap-based buffer underflow in the PHP scandir() function. A remote attacker can create specially crafted files, upload them to a directory the scandir() function runs on and cause the PHP interpreter to crash or execute arbitrary code with privileges of the web server.
Successful exploitation of the vulnerability results in denial of service or arbitrary code execution on the vulnerable system.
Note: the vulnerability was being actively exploited.
Remediation
Install update from vendor's website.