CVE-2020-10019 Buffer Overflow in USB DFU requested length
A malicious USB host can trigger a buffer overflow in Zephyr RTOS USB DFU implementation, potentially leading to arbitrary code execution.
- 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-2020-10019?
CVE-2020-10019 is a high-severity memory corruption vulnerability in Zephyrproject Zephyr, published on 11 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
USB DFU has a potential buffer overflow where the requested length (wLength) is not checked against the buffer size. This could be used by a malicious USB host to exploit the buffer overflow. See NCC-ZEP-002 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.
Weakness: CWE-120
Which versions are affected by CVE-2020-10019?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2020-10019?
No fix has been published for CVE-2020-10019 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-2020-10019 being exploited?
There is no known exploitation of CVE-2020-10019 in the wild and no public exploit code.
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Sources
Also known as GHSA-qv66-5g67-qh59.