Vulnerability Description
GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | 4.2.0 |
References
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html
- http://support.citrix.com/article/CTX201145
- http://www.debian.org/security/2015/dsa-3286
- http://www.securityfocus.com/bid/75141
- http://www.securitytracker.com/id/1032568
- http://xenbits.xen.org/xsa/advisory-134.htmlVendor Advisory
- https://security.gentoo.org/glsa/201604-03
- https://support.citrix.com/article/CTX206006
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html
- http://support.citrix.com/article/CTX201145
- http://www.debian.org/security/2015/dsa-3286
FAQ
What is CVE-2015-4163?
CVE-2015-4163 is a vulnerability with a CVSS score of 4.9 (MEDIUM). GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercal...
How severe is CVE-2015-4163?
CVE-2015-4163 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-2015-4163?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.