CVE-2018-19963
First published: Sat Dec 08 2018(Updated: )
An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | =4.11.0 |
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Frequently Asked Questions
What is the severity of CVE-2018-19963?
CVE-2018-19963 has a high severity due to its potential for denial of service and privilege escalation on the host OS.
How do I fix CVE-2018-19963?
To fix CVE-2018-19963, upgrade to Xen version 4.11.1 or later where the vulnerability has been addressed.
Who is affected by CVE-2018-19963?
CVE-2018-19963 affects users of Xen 4.11.0 running HVM guest operating systems.
What kind of attack does CVE-2018-19963 enable?
CVE-2018-19963 enables HVM guest OS users to potentially crash the host OS or escalate their privileges.
Is CVE-2018-19963 related to resource accounting?
Yes, CVE-2018-19963 is related to mishandling of x86 IOREQ server resource accounting for external emulators.
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