CVE-2020-7459 Memory corruption in FreeBSD
A malicious USB device can trigger a buffer overflow in FreeBSD USB network drivers, potentially allowing code execution or privilege escalation.
- 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-2020-7459?
CVE-2020-7459 is a medium-severity memory corruption vulnerability in Freebsd Freebsd, published on 6 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In FreeBSD 12.1-STABLE before r362166, 12.1-RELEASE before p8, 11.4-STABLE before r362167, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, missing length validation code common to mulitple USB network drivers allows a malicious USB device to write beyond the end of an allocated network packet buffer.
Weakness: CWE-20
Which versions are affected by CVE-2020-7459?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2020-7459?
No fix has been published for CVE-2020-7459 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-2020-7459 being exploited?
There is no known exploitation of CVE-2020-7459 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-64p6-7v6x-gpw9.