CVE-2015-7814: Race Condition
First published: Fri Oct 30 2015(Updated: )
Race condition in the relinquish_memory function in arch/arm/domain.c in Xen 4.6.x and earlier allows local domains with partial management control to cause a denial of service (host crash) via vectors involving the destruction of a domain and using XENMEM_decrease_reservation to reduce the memory of the domain.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | <=4.6.0 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
- http://www.debian.org/security/2015/dsa-3414
- http://www.securitytracker.com/id/1034030
- http://xenbits.xen.org/xsa/advisory-147.html
- https://security.gentoo.org/glsa/201604-03
Frequently Asked Questions
What is the severity of CVE-2015-7814?
CVE-2015-7814 is classified as a moderate severity vulnerability due to its potential for denial of service through host crashes.
How do I fix CVE-2015-7814?
To fix CVE-2015-7814, users should upgrade to Xen versions higher than 4.6.0, as the issue has been addressed in subsequent releases.
What systems are affected by CVE-2015-7814?
CVE-2015-7814 affects Xen versions 4.6.x and earlier, specifically those operating on ARM architecture.
What type of vulnerability is CVE-2015-7814?
CVE-2015-7814 is a race condition vulnerability occurring in the relinquish_memory function of the Xen hypervisor.
Can CVE-2015-7814 lead to data breaches?
While CVE-2015-7814 primarily causes denial of service, it does not directly lead to data breaches, but can disrupt service availability.
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