CVE-2011-3143

Use-after-free vulnerability in Control Microsystems ClearSCADA 2005, 2007, and 2009 before R2.3 and R1.4, as used in SCX before 67 R4.5 and 68 R3.9, allows…

published August 16, 2011

CVSS
—
EPSS
8%
Percentile
94.4
In the wild
Unconfirmed
What it is

⚠️ This sneaky use-after-free vulnerability in Control Microsystems ClearSCADA could leave your systems vulnerable to crashes and unexpected code execution! Think of this like a restaurant that just can't keep track of its tables. If a server forgets to clear a table after a patron leaves, the next guest could accidentally sit down at a table still covered in leftovers—leading to chaos! An attacker could exploit this vulnerability to trigger a denial of service, causing your system to crash spectacularly. In the worst-case scenario, they could execute arbitrary code, essentially giving them control over your system. That’s a situation you definitely want to avoid!

Put simply

Think of this like a restaurant that just can't keep track of its tables. If a server forgets to clear a table after a patron leaves, the next guest could accidentally sit down at a table still covered in leftovers—leading to chaos! This use-after-free vulnerability occurs when memory is incorrectly managed, allowing an attacker to manipulate heap memory with long strings and potentially execute arbitrary code.

What to do

An attacker could exploit this vulnerability to trigger a denial of service, causing your system to crash spectacularly. In the worst-case scenario, they could execute arbitrary code, essentially giving them control over your system. That’s a situation you definitely want to avoid! To protect your systems, upgrade ClearSCADA to version R2.3 or R1.4 or later. Additionally, ensure that you review memory management practices to prevent similar vulnerabilities in the future. You've got this! Stay proactive and your systems will be safe and sound. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.07506 · 94.4th percentile
Published
2011-08-16T21:00Z
EPSS history
Timeline
  • 16 AUG 21:00Z
    Use-after-free vulnerability in Control Microsystems ClearSCADA 2005, 2007, and 2009 before R2.3 and R1.4, as used in SCX before 67 R4.5 and 68 R3.9, allows…
    cvelistv5