CVE-2018-12180 Memory corruption in Extensible Firmware Interface Development Kit (EDK II)

High 8.8 Published 27 Mar 2019 Updated 5 Aug 2024

A buffer overflow in EDK II BlockIo service allows unauthenticated attackers to escalate privileges, disclose information, or cause denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2018-12180?

CVE-2018-12180 is a high-severity memory corruption vulnerability in Opensuse Leap, published on 27 Mar 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Buffer overflow in BlockIo service for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via network access.

Weakness: CWE-787

Which versions are affected by CVE-2018-12180?

It affects 2 products.

Linux distribution packages (10)

`redhat-release-virtualization-host` Red Hat:enterprise_linux:7::hypervisor	All versions	`0:4.3-0.6.el7`
`redhat-virtualization-host` Red Hat:enterprise_linux:7::hypervisor	All versions	`0:4.3-20190418.0.el7_6`
`redhat-virtualization-host-image-update` Red Hat:enterprise_linux:7::hypervisor	All versions	`0:4.3-20190418.0.el7_6`
`redhat-virtualization-host-image-update-placeholder` Red Hat:enterprise_linux:7::hypervisor	All versions	`0:4.3-0.6.el7`
`AAVMF` Red Hat:enterprise_linux:7::server	All versions	`0:20180508-3.gitee3198e672e2.el7_6.1`
`OVMF` Red Hat:enterprise_linux:7::server	All versions	`0:20180508-3.gitee3198e672e2.el7_6.1`
`ovmf` Red Hat:enterprise_linux:7::server	All versions	`0:20180508-3.gitee3198e672e2.el7_6.1`
`edk2` Red Hat:enterprise_linux:8::appstream	All versions	`0:20180508gitee3198e672e2-9.el8_0.1`
`edk2-aarch64` Red Hat:enterprise_linux:8::appstream	All versions	`0:20180508gitee3198e672e2-9.el8_0.1`
`edk2-ovmf` Red Hat:enterprise_linux:8::appstream	All versions	`0:20180508gitee3198e672e2-9.el8_0.1`

Products include Opensuse Leap, Tianocore Edk Ii.

How do I fix CVE-2018-12180?

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-2018-12180 being exploited?

There is no known exploitation of CVE-2018-12180 in the wild and no public exploit code.

All Opensuse Leap vulnerabilities

Sources

Also known as DEBIAN-CVE-2018-12180, GHSA-9ghw-h32x-5rfx, RHSA-2019:0809, RHSA-2019:0968, RHSA-2019:1116, UBUNTU-CVE-2018-12180.