CVE-2024-8361 DoS caused due to wrong hash length returned for SHA2/224 algorithm
An attacker can cause a Denial of Service on SiWx91x devices by triggering an assertion failure due to incorrect SHA2/224 hash length handling.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-8361?
CVE-2024-8361 is a high-severity denial of service vulnerability in silabs.com WiSeConnect SDK, published on 7 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In SiWx91x devices, the SHA2/224 algorithm returns a hash of 256 bits instead of 224 bits. This incorrect hash length triggers a software assertion, which subsequently causes a Denial of Service (DoS). If a watchdog is implemented, device will restart after watch dog expires. If watchdog is not implemented, device can be recovered only after a hard reset
Which versions are affected by CVE-2024-8361?
How do I fix CVE-2024-8361?
No fix has been published for CVE-2024-8361 yet. Limit exposure of the affected software until one is available.
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-2024-8361 being exploited?
There is no known exploitation of CVE-2024-8361 in the wild and no public exploit code.
Sources
Also known as GHSA-p3r2-35xm-8q7v.