SB2011091604 - Buffer overflow in Beckhoff TwinCAT
Published: September 16, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011091604
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2011-3486)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Beckhoff TwinCAT 2.11.0.2004 and earlier allows remote attackers to cause a denial of service via a crafted request to UDP port 48899, which triggers an out-of-bounds read.
Remediation
Install update from vendor's website.