CVE-2017-15597 Memory corruption in n/a
A malicious guest administrator can trigger hypervisor memory corruption, causing host crashes and potential privilege escalation or information leaks.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-15597?
CVE-2017-15597 is a critical memory corruption vulnerability in Xen Xen, published on 30 Oct 2017. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
An issue was discovered in Xen through 4.9.x. Grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. Other portions of code, however, did not match up with that assumption. When such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. A malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a Denial of Service. Privilege escalation and information leaks cannot be ruled out.
Which versions are affected by CVE-2017-15597?
It affects 1 product.
Products include Xen Xen.
How do I fix CVE-2017-15597?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-15597 being exploited?
There is no known exploitation of CVE-2017-15597 in the wild and no public exploit code.
Other vulnerabilities in Xen Xen
Sources
Also known as ALPINE-CVE-2017-15597, DEBIAN-CVE-2017-15597, GHSA-53jp-4hq4-cmc7, UBUNTU-CVE-2017-15597.