CVE-2021-3435 L2CAP: Information leakage in le_ecred_conn_req()
An attacker can read uninitialized memory via L2CAP connection requests in Zephyr RTOS, potentially exposing sensitive data.
- 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-2021-3435?
CVE-2021-3435 is a medium-severity vulnerability in Zephyrproject Zephyr, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Information leakage in le_ecred_conn_req(). Zephyr versions >= v2.4.0 Use of Uninitialized Resource (CWE-908). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-xhg3-gvj6-4rqh
Weakness: CWE-908
Which versions are affected by CVE-2021-3435?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2021-3435?
No fix has been published for CVE-2021-3435 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-3435 being exploited?
There is no known exploitation of CVE-2021-3435 in the wild and no public exploit code.
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