Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Enterprise Linux | 5.0 |
| Redhat | Enterprise Linux Desktop | 5.0 |
| Xen | Xen | <= 3.2.0 |
| Debian | Debian Linux | 7.0 |
| Opensuse | Opensuse | 13.1 |
Related Weaknesses (CWE)
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0783.htmlThird Party Advisory
- http://secunia.com/advisories/59949Permissions RequiredThird Party Advisory
- http://secunia.com/advisories/62672Permissions RequiredThird Party Advisory
- http://support.citrix.com/article/CTX200288
- http://support.citrix.com/article/CTX201794
- http://www.debian.org/security/2015/dsa-3140Third Party Advisory
- http://www.securityfocus.com/bid/71331Third Party AdvisoryVDB Entry
- http://xenbits.xenproject.org/xsa/advisory-112.htmlPatchVendor Advisory
- https://security.gentoo.org/glsa/201504-04
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
FAQ
What is CVE-2014-8867?
CVE-2014-8867 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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 ...
How severe is CVE-2014-8867?
CVE-2014-8867 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-8867?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Xen Xen, Debian Debian Linux, Opensuse Opensuse.