CVE-2022-46393

An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0

Critical · published December 15, 2022

CVSS v3.1
9.8
EPSS
1%
Percentile
69.3
In the wild
Unconfirmed
What it is

🚨 A heap-based buffer overflow lurking in Mbed TLS before versions 2.28.2 and 3.3.0 could turn your secure connection into a wild west shootout! 🔥 Think of it like a restaurant with an overflowing kitchen. If the chef’s prep area (the heap) isn’t managed properly, ingredients (data) can spill over, and you could end up mixing a delightful stew with some hazardous items — not a recipe for success! This vulnerability could allow an attacker to manipulate memory, leading to data leakage or even control of your application. Imagine someone sneaking into the kitchen and adding their own ingredients to the dish — it could be absolutely devastating for the entire operation!

Put simply

Think of it like a restaurant with an overflowing kitchen. If the chef’s prep area (the heap) isn’t managed properly, ingredients (data) can spill over, and you could end up mixing a delightful stew with some hazardous items — not a recipe for success! In Mbed TLS, if the DTLS connection ID option is enabled but not properly configured, it can lead to memory mishandling, allowing for buffer overflows or over-reads. This can compromise the integrity of secure communications.

What to do

This vulnerability could allow an attacker to manipulate memory, leading to data leakage or even control of your application. Imagine someone sneaking into the kitchen and adding their own ingredients to the dish — it could be absolutely devastating for the entire operation! Upgrade to Mbed TLS version 2.28.2 or 3.3.0 immediately to close this critical hole. Additionally, review your DTLS configuration to ensure the connection ID handling is safe and properly set up. It's an easy fix, and your security will thank you! You've got this! With these steps, you’ll be sure to keep your connections secure and your data safe! 🛡️

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
0.01255 · 69.3th percentile
Published
2022-12-15T00:00Z
EPSS history
Timeline
  • 15 DEC 00:00Z
    An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0
    cvelistv5