CVE-2021-41193CWE-134

Use of Externally-Controlled Format String in wire-avs

Critical · published March 1, 2022

CVSS v3.1
9.8
EPSS
2%
Percentile
84.4
In the wild
Unconfirmed
What it is

🚨 A remote format string vulnerability in wire-avs could let attackers crash your app or execute arbitrary code — that’s a serious threat! 🔥 Think of it like a waiter who misreads your order. Instead of getting you the delicious dish you wanted, they accidentally serve something completely inedible! This is what can happen when the AVS component misinterprets the data, leading to a denial of service or worse. An attacker could exploit this vulnerability to disrupt service, leaving users unable to communicate. Even more alarming, they might execute arbitrary code — potentially taking control of your system! This could result in data breaches or total service outages, which is absolutely devastating.

Put simply

Think of it like a waiter who misreads your order. Instead of getting you the delicious dish you wanted, they accidentally serve something completely inedible! This is what can happen when the AVS component misinterprets the data, leading to a denial of service or worse. The vulnerability arises from improper handling of format strings in wire-avs, allowing an attacker to manipulate input and potentially execute arbitrary commands or crash the application.

What to do

An attacker could exploit this vulnerability to disrupt service, leaving users unable to communicate. Even more alarming, they might execute arbitrary code — potentially taking control of your system! This could result in data breaches or total service outages, which is absolutely devastating. To protect yourself, update wire-avs to version 7.1.12 immediately. As there are no known workarounds, patching is essential. Regularly check your systems for the latest updates to avoid similar vulnerabilities in the future! You've got this! Stay proactive, and you’ll keep your systems secure! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02466 · 84.4th percentile
Weakness
CWE-134 · Use of Externally-Controlled Format String
Published
2022-03-01T18:25Z
EPSS history
Timeline
  • 01 MAR 18:25Z
    Use of Externally-Controlled Format String in wire-avs
    cvelistv5