CVE-2023-5055 L2CAP: Possible Stack based buffer overflow in le_ecred_reconf_req()
A stack-based buffer overflow in the Zephyr RTOS L2CAP implementation allows attackers to execute arbitrary code or 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-2023-5055?
CVE-2023-5055 is a high-severity memory corruption vulnerability in Zephyrproject Zephyr, published on 21 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Possible variant of CVE-2021-3434 in function le_ecred_reconf_req.
Which versions are affected by CVE-2023-5055?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2023-5055?
No fix has been published for CVE-2023-5055 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-5055 being exploited?
There is no known exploitation of CVE-2023-5055 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-wr8r-7f8x-24jj.