CVE-2022-2993 bt: host: Wrong key validation check
A logic error in Zephyr RTOS Bluetooth SMP key validation allows attackers to bypass authentication requirements.
- 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-2022-2993?
CVE-2022-2993 is a high-severity authentication bypass vulnerability in Zephyrproject Zephyr, published on 12 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
There is an error in the condition of the last if-statement in the function smp_check_keys. It was rejecting current keys if all requirements were unmet.
Weakness: CWE-670
Which versions are affected by CVE-2022-2993?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2022-2993?
No fix has been published for CVE-2022-2993 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2022-2993 being exploited?
There is no known exploitation of CVE-2022-2993 in the wild and no public exploit code.
Other vulnerabilities in Zephyrproject Zephyr
- CVE-2026-5067 Out-of-bounds read/write in HTTP WebSocket upgrade via non-null-terminated Sec-WebSocket-Key
- CVE-2022-3806 Bluetooth HCI Error Handling Double Free
- CVE-2017-14199 Memory corruption in getaddrinfo
- CVE-2018-1000800 Null dereference in n/a
- CVE-2021-3329 DOS: Incorrect handling of the initial HCI ACL_MTU handshake packet leads to crash of bluetooth host layer
Sources
Also known as GHSA-3286-jgjx-8cvr.