CVE-2015-4103 Privilege escalation in n/a
Local guest administrators can cause host denial of service and potentially escalate privileges by improperly accessing MSI message data fields.
- 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-2015-4103?
CVE-2015-4103 is a medium-severity vulnerability in Xen Xen, published on 3 Jun 2015. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.
Weakness: CWE-264
Which versions are affected by CVE-2015-4103?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2015-4103?
Apply the vendor's patch.
Is CVE-2015-4103 being exploited?
There is no known exploitation of CVE-2015-4103 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as DEBIAN-CVE-2015-4103, GHSA-pgcx-wwx7-v778, UBUNTU-CVE-2015-4103.