CVE-2021-25489 Samsung Mobile Devices Improper Input Validation
A format string bug in the modem driver allows attackers with radio permissions to cause a kernel panic, requiring a security patch.
- Exploited in the wild
- Since 29 Jun 2023
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-25489?
CVE-2021-25489 is a low-severity denial of service vulnerability in Samsung Android, published on 6 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.
Which versions are affected by CVE-2021-25489?
It affects 1 product.
Products include Samsung Android.
How do I fix CVE-2021-25489?
No fix has been published for CVE-2021-25489 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 20 Jul 2023.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-25489 being exploited?
Yes. Attackers have exploited CVE-2021-25489 in the wild since at least 29 Jun 2023.
Other vulnerabilities in Samsung Android
Sources
Also known as GHSA-hmpv-pvg5-4fpq.