CVE-2021-30347

Improper integrity check can lead to race condition between tasks PDCP and RRC?

Critical ยท published June 14, 2022

CVSS v3.1
9.1
EPSS
1%
Percentile
42.9
In the wild
Unconfirmed
What it is

๐Ÿšจ An improper integrity check could open a door to chaos in Snapdragon devices! ๐Ÿƒโ€โ™‚๏ธ๐Ÿ’จ Think of it like a factory assembly line where one worker forgets to check the quality of a crucial component before passing it to the next โ€” the whole process could suffer if that part fails! An attacker could exploit this race condition to manipulate tasks between PDCP and RRC, leading to data leaks, unauthorized control, or even full device compromise. It's not just a minor hiccup; this could potentially disrupt crucial services and expose sensitive data! ๐Ÿ”ฅ

Put simply

Think of it like a factory assembly line where one worker forgets to check the quality of a crucial component before passing it to the next โ€” the whole process could suffer if that part fails! This vulnerability arises from an improper integrity check that allows a race condition between PDCP and RRC tasks right after a valid RRC Command packet is received. Devices such as Snapdragon Auto, Compute, Connectivity, Industrial IoT, and Mobile are affected, making it a serious concern.

What to do

An attacker could exploit this race condition to manipulate tasks between PDCP and RRC, leading to data leaks, unauthorized control, or even full device compromise. It's not just a minor hiccup; this could potentially disrupt crucial services and expose sensitive data! ๐Ÿ”ฅ Immediately patch affected Snapdragon devices by updating to the latest firmware that addresses CVE-2021-30347. Ensure your system integrity checks are robust, and review any task synchronization protocols to prevent similar vulnerabilities in the future. You've got this! Follow these steps and you'll be well on your way to securing your devices! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS v3.1
9.1 ยท CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00514 ยท 42.9th percentile
Published
2022-06-14T10:11Z
EPSS history
Timeline
  • 14 JUN 10:11Z
    Improper integrity check can lead to race condition between tasks PDCP and RRC?
    cvelistv5