CVE-2021-3322 Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr
A NULL pointer dereference in Zephyr's IEEE 802154 fragment reassembly can cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-3322?
CVE-2021-3322 is a medium-severity vulnerability in Zephyrproject Zephyr, published on 12 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Unexpected Pointer Aliasing in IEEE 802154 Fragment Reassembly in Zephyr. Zephyr versions >= >=2.4.0 contain NULL Pointer Dereference (CWE-476). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-p86r-gc4r-4mq3
Weakness: CWE-476
Which versions are affected by CVE-2021-3322?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2021-3322?
No fix has been published for CVE-2021-3322 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-3322 being exploited?
There is no known exploitation of CVE-2021-3322 in the wild and no public exploit code.
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