CVE-2018-12181 Memory corruption in Extensible Firmware Interface Development Kit (EDK II)

Medium 6.0 Published 27 Mar 2019 Updated 5 Aug 2024

A stack overflow in EDK II firmware allows local attackers to cause denial of service or escalate privileges via corrupted BMP files.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2018-12181?

CVE-2018-12181 is a medium-severity memory corruption vulnerability in Extensible Firmware Interface Development Kit (EDK II), published on 27 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Stack overflow in corrupted bmp for EDK II may allow unprivileged user to potentially enable denial of service or elevation of privilege via local access.

Weakness: CWE-787

Which versions are affected by CVE-2018-12181?

It affects 1 product.

Linux distribution packages (2)

`ovmf` SUSE:Linux Enterprise Server 12 SP3	All versions	`2017+git1492060560.b6d11d7c46-4.23.1`
`ovmf` SUSE:Linux Enterprise Server for SAP Applications 12 SP3	All versions	`2017+git1492060560.b6d11d7c46-4.23.1`

Products include Tianocore Edk Ii.

How do I fix CVE-2018-12181?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-12181 being exploited?

There is no known exploitation of CVE-2018-12181 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-12181, GHSA-wf68-vxvr-9r6g, SUSE-SU-2019:0738-1, UBUNTU-CVE-2018-12181.