CVE-2016-9817
First published: Mon Feb 27 2017(Updated: )
Xen through 4.7.x allows local ARM guest OS users to cause a denial of service (host crash) via vectors involving a (1) data or (2) prefetch abort with the ESR_EL2.EA bit set.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen xen-unstable | =4.7.0 | |
| Xen xen-unstable | =4.7.1 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2016/11/29/3
- http://www.openwall.com/lists/oss-security/2016/12/05/7
- http://www.securityfocus.com/bid/94581
- http://www.securitytracker.com/id/1037358
- http://xenbits.xen.org/xsa/advisory-201.html
- http://xenbits.xen.org/xsa/xsa201-3-4.7.patch
- http://xenbits.xen.org/xsa/xsa201-3.patch
- https://security.gentoo.org/glsa/201612-56
Frequently Asked Questions
What is the severity of CVE-2016-9817?
CVE-2016-9817 has a medium severity level due to its potential to cause denial of service on the host system.
How do I fix CVE-2016-9817?
To fix CVE-2016-9817, you should upgrade to Xen version 4.7.2 or later, which includes patches addressing this vulnerability.
Who is affected by CVE-2016-9817?
CVE-2016-9817 affects local ARM guest OS users running Xen versions 4.7.0 and 4.7.1.
What sort of attacks can exploit CVE-2016-9817?
CVE-2016-9817 can be exploited through data or prefetch aborts that lead to host crashes.
Can CVE-2016-9817 lead to remote exploitation?
No, CVE-2016-9817 is a local vulnerability and requires local access to the ARM guest OS to exploit.
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