Vulnerability Description
Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice.
CVSS Score
7.2
HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fedoraproject | Fedora | 21 |
| Xen | Xen | <= 4.5.0 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.
- http://www.securityfocus.com/bid/76152
- http://www.securitytracker.com/id/1033175
- http://xenbits.xen.org/xsa/advisory-139.htmlPatchVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.
- http://www.securityfocus.com/bid/76152
- http://www.securitytracker.com/id/1033175
- http://xenbits.xen.org/xsa/advisory-139.htmlPatchVendor Advisory
FAQ
What is CVE-2015-5166?
CVE-2015-5166 is a vulnerability with a CVSS score of 7.2 (HIGH). Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twic...
How severe is CVE-2015-5166?
CVE-2015-5166 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-5166?
Check the references section above for vendor advisories and patch information. Affected products include: Fedoraproject Fedora, Xen Xen.