CVE-2012-4544 Denial of service in n/a
Local guest administrators can cause a denial of service in the Xen hypervisor by providing a crafted kernel or ramdisk that exhausts domain 0 memory.
- 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-2012-4544?
CVE-2012-4544 is a low-severity denial of service vulnerability in Xen Xen, published on 31 Oct 2012. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, which allows local guest administrators to cause a denial of service (domain 0 memory consumption) via a crafted (a) kernel or (b) ramdisk.
Weakness: CWE-20
Which versions are affected by CVE-2012-4544?
It affects 1 product.
Linux distribution packages (6)
xen Red Hat:enterprise_linux:5::server | All versions | 0:3.0.3-142.el5_9.1 |
xen-debuginfo Red Hat:enterprise_linux:5::server | All versions | 0:3.0.3-142.el5_9.1 |
xen-libs Red Hat:enterprise_linux:5::server | All versions | 0:3.0.3-142.el5_9.1 |
xen Red Hat:rhel_virtualization:5::server | All versions | 0:3.0.3-142.el5_9.1 |
xen-debuginfo Red Hat:rhel_virtualization:5::server | All versions | 0:3.0.3-142.el5_9.1 |
xen-devel Red Hat:rhel_virtualization:5::server | All versions | 0:3.0.3-142.el5_9.1 |
Products include Xen Xen.
How do I fix CVE-2012-4544?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2012-4544 being exploited?
There is no known exploitation of CVE-2012-4544 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2012-4544, GHSA-5vgr-8hw2-wp3h, RHSA-2013:0241.