CVE-2021-38111 Memory corruption in n/a
Remote attackers can exploit a buffer overflow in the DEF CON 27 badge via oversized NFMI packets to execute arbitrary code.
- 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-2021-38111?
CVE-2021-38111 is a high-severity memory corruption vulnerability in n/a, published on 4 Aug 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The DEF CON 27 badge allows remote attackers to exploit a buffer overflow by sending an oversized packet via the NFMI (Near Field Magnetic Induction) protocol.
Weakness: CWE-120
Which versions are affected by CVE-2021-38111?
It affects 1 product.
Products include Defcon Def Con 27 Firmware.
How do I fix CVE-2021-38111?
No fix has been published for CVE-2021-38111 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-2021-38111 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-38111 exists.
Sources
Also known as GHSA-5jwm-jmmx-2mv2.