CVE-2020-13598 FS: Buffer Overflow when enabling Long File Names in FAT_FS and calling fs_stat
A stack-based buffer overflow in Zephyr RTOS allows attackers to execute arbitrary code or cause denial of service when Long File Names are enabled.
- 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-2020-13598?
CVE-2020-13598 is a medium-severity memory corruption vulnerability in Zephyrproject Zephyr, published on 24 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
FS: Buffer Overflow when enabling Long File Names in FAT_FS and calling fs_stat. Zephyr versions >= v1.14.2, >= v2.3.0 contain Stack-based Buffer Overflow (CWE-121). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7fhv-rgxr-x56h
Which versions are affected by CVE-2020-13598?
It affects 1 product.
Products include Zephyrproject Zephyr.
How do I fix CVE-2020-13598?
No fix has been published for CVE-2020-13598 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-2020-13598 being exploited?
There is no known exploitation of CVE-2020-13598 in the wild and no public exploit code.
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