CVE-2013-1943 Privilege escalation in n/a

High 7.8 Published Updated

Local attackers can exploit missing address checks in KVM memory slot allocation to gain privileges or read kernel memory.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2013-1943?

CVE-2013-1943 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 16 Jul 2013. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

The KVM subsystem in the Linux kernel before 3.0 does not check whether kernel addresses are specified during allocation of memory slots for use in a guest's physical address space, which allows local users to gain privileges or obtain sensitive information from kernel memory via a crafted application, related to arch/x86/kvm/paging_tmpl.h and virt/kvm/kvm_main.c.

Weakness: CWE-20

Which versions are affected by CVE-2013-1943?

It affects 4 products.

Products include Canonical Ubuntu Linux, Linux kernel, Redhat Enterprise Linux, Redhat Enterprise Linux Eus.

How do I fix CVE-2013-1943?

Apply the vendor's patch.

Is CVE-2013-1943 being exploited?

There is no known exploitation of CVE-2013-1943 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-ffvw-xh69-vrvc.

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