CVE-2018-14856 Memory corruption in n/a

Medium 6.3 Published 17 Dec 2018 Updated 5 Aug 2024

A buffer overflow in the Wi-Fi driver allows attackers with chip access to cause invalid memory accesses, potentially leading to code execution on Samsung Galaxy S6 devices.

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-2018-14856?

CVE-2018-14856 is a medium-severity memory corruption vulnerability in n/a, published on 17 Dec 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Buffer overflow in dhd_bus_flow_ring_create_response in drivers/net/wireless/bcmdhd4358/dhd_pcie.c in the bcmdhd4358 Wi-Fi driver on the Samsung Galaxy S6 SM-G920F G920FXXU5EQH7 allow an attacker (who has obtained code execution on the Wi-Fi) chip to cause the device driver to perform invalid memory accesses. The Samsung ID is SVE-2018-11785.

Weakness: CWE-119

Which versions are affected by CVE-2018-14856?

It affects 1 product.

Products include Samsung Galaxy S6 Firmware.

How do I fix CVE-2018-14856?

No fix has been published for CVE-2018-14856 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-2018-14856 being exploited?

There is no known exploitation of CVE-2018-14856 in the wild and no public exploit code.

Sources

Also known as GHSA-5239-56w9-hx7j.