CVE-2023-43556CWE-120

Buffer Copy Without Checking Size of Input in Hypervisor

Critical · published June 3, 2024

CVSS v3.1
9.3
EPSS
0%
Percentile
1.0
In the wild
Unconfirmed
What it is

🚨 A misaligned platform information trigger in your Hypervisor could lead to absolute chaos! 🔥 Think of it like a poorly constructed bridge where the support beams don't match up. Just one misplaced beam could cause the entire structure to collapse, leaving everything relying on it in jeopardy. In this case, attackers could potentially exploit the memory corruption, leading to system crashes, unauthorized data access, or even full control over the hypervisor. The consequences could be mind-blowingly devastating for any virtual machines relying on it!

Put simply

Think of it like a poorly constructed bridge where the support beams don't match up. Just one misplaced beam could cause the entire structure to collapse, leaving everything relying on it in jeopardy. This vulnerability stems from a memory corruption issue in the Hypervisor when platform information isn't properly aligned, allowing attackers to manipulate memory and execute arbitrary code.

What to do

In this case, attackers could potentially exploit the memory corruption, leading to system crashes, unauthorized data access, or even full control over the hypervisor. The consequences could be mind-blowingly devastating for any virtual machines relying on it! Immediate action is crucial: update your Hypervisor to the latest patched version as soon as one is available. Implement rigorous monitoring of your systems for unusual behavior and ensure that your configurations align correctly to mitigate this risk. You've got this! By taking action now, you can protect your systems and keep everything running smoothly. 🛡️

The record
Technical detail
CVSS v3.1
9.3 · CRITICAL
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00104 · 1.0th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2024-06-03T10:05Z
EPSS history
Timeline
  • 03 JUN 10:05Z
    Buffer Copy Without Checking Size of Input in Hypervisor
    cvelistv5