CVE-2013-1943 Privilege escalation in n/a
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.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as GHSA-ffvw-xh69-vrvc.