CVE-2014-8867
First published: Mon Dec 01 2014(Updated: )
The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Enterprise Linux | =5.0 | |
| redhat enterprise Linux desktop | =5.0 | |
| Xen xen-unstable | <=3.2.0 | |
| Xen xen-unstable | =3.2.1 | |
| Xen xen-unstable | =3.2.2 | |
| Xen xen-unstable | =3.2.3 | |
| Xen xen-unstable | =4.4.0 | |
| Xen xen-unstable | =4.4.1 | |
| Debian GNU/Linux | =7.0 | |
| openSUSE | =13.1 | |
| openSUSE | =13.2 |
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Reference Links
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
- http://rhn.redhat.com/errata/RHSA-2015-0783.html
- http://secunia.com/advisories/59949
- http://secunia.com/advisories/62672
- http://support.citrix.com/article/CTX200288
- http://support.citrix.com/article/CTX201794
- http://www.debian.org/security/2015/dsa-3140
- http://www.securityfocus.com/bid/71331
- http://xenbits.xenproject.org/xsa/advisory-112.html
- https://security.gentoo.org/glsa/201504-04
Frequently Asked Questions
What is the severity of CVE-2014-8867?
CVE-2014-8867 is a medium severity vulnerability that can lead to denial of service, including host crashes.
How do I fix CVE-2014-8867?
To fix CVE-2014-8867, you should apply the latest security patches provided for the affected versions of Xen and related operating systems.
What versions are affected by CVE-2014-8867?
CVE-2014-8867 affects Xen 4.4.x, 3.2.x, and earlier, as well as specific versions of Red Hat Enterprise Linux, Debian Linux, and openSUSE.
Can local HVM guests exploit CVE-2014-8867?
Yes, local HVM guests can exploit CVE-2014-8867 to cause a denial of service on the host system.
What are the potential impacts of CVE-2014-8867?
The potential impacts of CVE-2014-8867 include system instability and crashing of the hypervisor, leading to downtime for hosted virtual machines.
- agent/references
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- vendor/redhat
- canonical/red hat enterprise linux
- version/red hat enterprise linux/5.0
- canonical/redhat enterprise linux desktop
- version/redhat enterprise linux desktop/5.0
- vendor/xen
- canonical/xen xen-unstable
- version/xen xen-unstable/3.2.0
- version/xen xen-unstable/3.2.1
- version/xen xen-unstable/3.2.2
- version/xen xen-unstable/3.2.3
- version/xen xen-unstable/4.4.0
- version/xen xen-unstable/4.4.1
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/7.0
- vendor/opensuse
- canonical/opensuse
- version/opensuse/13.1
- version/opensuse/13.2