CVE-2020-27690 Memory corruption in n/a

Medium 5.5 Published 4 Nov 2020 Updated 4 Aug 2024

A buffer overflow in the Verve Connect VH510 web portal allows attackers to crash the Boa server via a large POST request.

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-2020-27690?

CVE-2020-27690 is a medium-severity memory corruption vulnerability in n/a, published on 4 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516 contains a buffer overflow within its web management portal. When a POST request is sent to /boaform/admin/formDOMAINBLK with a large blkDomain value, the Boa server crashes.

Weakness: CWE-120

Which versions are affected by CVE-2020-27690?

It affects 1 product.

Products include Imomobile Verve Connect Vh510 Firmware.

How do I fix CVE-2020-27690?

No fix has been published for CVE-2020-27690 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-2020-27690 being exploited?

There is no known exploitation of CVE-2020-27690 in the wild and no public exploit code.

Sources

Also known as GHSA-78v5-44wg-r7fp.