CVE-2017-14201 The shell DNS command can cause unpredictable results due to misuse of stack variables.
A use-after-free flaw in the Zephyr shell allows connected users to cause denial of service or potentially execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-14201?
CVE-2017-14201 is a high-severity use after free vulnerability in Zephyrproject Zephyr, published on 29 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use After Free vulnerability in the Zephyr shell allows a serial or telnet connected user to cause denial of service, and possibly remote code execution. This issue affects: Zephyr shell versions prior to 1.14.0 on all.
Weakness: CWE-416
Which versions are affected by CVE-2017-14201?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2017-14201?
No fix has been published for CVE-2017-14201 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-14201 being exploited?
There is no known exploitation of CVE-2017-14201 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-v422-67vr-jrj5.