CVE-2023-21671CWE-20

Improper Input Validation in Core

Critical · published November 7, 2023

CVSS v3.1
9.3
EPSS
0%
Percentile
3.2
In the wild
Unconfirmed
What it is

🔥 A memory corruption flaw in Core could lead to unauthorized access during syscall! This is a serious threat that demands your immediate attention! 😱 Think of it like a glitch in a security system that lets someone bypass the guard and enter a restricted area without being checked. Just like a faulty alarm not notifying you of a break-in, this vulnerability could allow attackers to exploit critical system functions unchecked. An attacker could potentially execute arbitrary code, compromising system integrity and gaining unauthorized control. This could result in data breaches, system failures, and even cascading failures across networks. The consequences could be absolutely devastating, affecting both security and trust in the affected systems!

Put simply

Think of it like a glitch in a security system that lets someone bypass the guard and enter a restricted area without being checked. Just like a faulty alarm not notifying you of a break-in, this vulnerability could allow attackers to exploit critical system functions unchecked. The vulnerability arises from improper handling of memory during syscall operations for the Sectools Fuse comparison feature, which can allow attackers to corrupt memory and execute harmful code.

What to do

An attacker could potentially execute arbitrary code, compromising system integrity and gaining unauthorized control. This could result in data breaches, system failures, and even cascading failures across networks. The consequences could be absolutely devastating, affecting both security and trust in the affected systems! Immediately patch to the latest version that addresses CVE-2023-21671. Ensure that your systems are updated and perform a security audit to check for any signs of exploitation. It's crucial to review your memory handling practices to prevent similar vulnerabilities in the future. You've got this! By taking action now, you can safeguard your systems and achieve security hero status! 🛡️

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
0.00142 · 3.2th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2023-11-07T05:26Z
EPSS history
Timeline
  • 07 NOV 05:26Z
    Improper Input Validation in Core
    cvelistv5