CVE-2015-5166: Use After Free
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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2015-5166?
CVE-2015-5166 is considered a high severity vulnerability due to its potential to allow privilege escalation for local HVM guest users.
How do I fix CVE-2015-5166?
To fix CVE-2015-5166, update to the latest version of QEMU or Xen that addresses this vulnerability.
Who is affected by CVE-2015-5166?
CVE-2015-5166 affects users of Xen versions up to and including 4.5.1 and specific Fedora versions 21 and 22.
What causes CVE-2015-5166?
CVE-2015-5166 is caused by a use-after-free error in QEMU when unplugging emulated block devices.
What are the potential consequences of exploiting CVE-2015-5166?
Exploiting CVE-2015-5166 can allow an attacker to gain elevated privileges on the host system by manipulating block device states.