CVE-2014-5148: Buffer Overflow
First published: Sun Oct 26 2014(Updated: )
Xen 4.4.x, when running on an ARM system and "handling an unknown system register access from 64-bit userspace," returns to an instruction of the trap handler for kernel space faults instead of an instruction that is associated with faults in 64-bit userspace, which allows local guest users to cause a denial of service (crash) and possibly gain privileges via a crafted process.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | =4.4.1 | |
| Xen xen-unstable | =4.4.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2014-5148?
CVE-2014-5148 is considered a high severity vulnerability due to the potential for local guest users to exploit the issue.
How do I fix CVE-2014-5148?
To fix CVE-2014-5148, you should upgrade Xen to version 4.4.2 or later which contains the necessary patches.
What versions of Xen are affected by CVE-2014-5148?
CVE-2014-5148 affects Xen versions 4.4.0 and 4.4.1.
What type of systems are impacted by CVE-2014-5148?
CVE-2014-5148 impacts ARM systems running Xen hypervisor.
What is the nature of the vulnerability in CVE-2014-5148?
CVE-2014-5148 allows local guest users to access kernel space due to improper handling of unknown system register accesses.
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