REDHAT-BUG-447759
First published: Wed May 21 2008(Updated: )
Description of problem: The recent fix to validate the frontend's frame buffer description neglected to limit the frame buffer size correctly. This lets a malicious frontend make the backend attempt to map an arbitrary amount of guest memory, which could be useful for a denial of service attack against dom0. Proposed upstream patch: <a href="http://xenbits.xensource.com/xen-unstable.hg?rev/9044705960cb30cec385bdca7305bcf7db096721">http://xenbits.xensource.com/xen-unstable.hg?rev/9044705960cb30cec385bdca7305bcf7db096721</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen Project Xen Hypervisor |
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Reference Links
Frequently Asked Questions
What is the severity of REDHAT-BUG-447759?
The severity of REDHAT-BUG-447759 is considered high due to the potential for denial of service attacks.
How do I fix REDHAT-BUG-447759?
To fix REDHAT-BUG-447759, apply the latest patches provided by the Xen Project for the affected hypervisor.
Who is affected by REDHAT-BUG-447759?
The vulnerability REDHAT-BUG-447759 affects users of the Xen Project Xen Hypervisor.
What can exploit REDHAT-BUG-447759?
A malicious frontend can exploit REDHAT-BUG-447759 by causing the backend to map an arbitrary amount of guest memory.
What types of attacks can result from REDHAT-BUG-447759?
REDHAT-BUG-447759 can potentially lead to denial of service attacks against the Xen hypervisor.
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- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2008-1952
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- agent/description
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- vendor/xen project
- canonical/xen project xen hypervisor