CVE-2020-2732 Information disclosure in Oracle Linux
An L2 guest can access sensitive L1 resources via KVM instruction emulation flaws when nested virtualization is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-2732?
CVE-2020-2732 is a medium-severity vulnerability in Redhat Enterprise Linux, published on 8 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest.
Weakness: CWE-200
Which versions are affected by CVE-2020-2732?
It affects 1 product.
Products include Redhat Enterprise Linux.
How do I fix CVE-2020-2732?
Apply the vendor's patch.
Is CVE-2020-2732 being exploited?
There is no known exploitation of CVE-2020-2732 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
- CVE-2018-14667 Red Hat JBoss RichFaces Framework Expression Language Injection
- CVE-2021-20325 Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a securit
- CVE-2018-25011 Memory corruption in libwebp
- CVE-2018-25014 Other in libwebp
- CVE-2014-3585 Supply chain in redhat-upgrade-tool
Sources
Also known as DEBIAN-CVE-2020-2732, GHSA-pqrp-hrrg-q69p, MGASA-2020-0110, UBUNTU-CVE-2020-2732, USN-4303-1, USN-4303-2.