CVE-2016-6258: High severity xen xapi vulnerability
The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.
Affected Software
Remediation
Patch Available
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Event History
Frequently Asked Questions
What is the severity of CVE-2016-6258?
CVE-2016-6258 is classified as a high-severity vulnerability that allows local 32-bit PV guest OS administrators to escalate privileges to the host OS.
How does CVE-2016-6258 affect system security?
CVE-2016-6258 can potentially allow unauthorized access to the host operating system, compromising the security of the entire virtualization environment.
How do I fix CVE-2016-6258?
To remediate CVE-2016-6258, upgrade to Xen version 4.7.1 or later, as this contains patches that address the vulnerability.
Is my version of Xen vulnerable to CVE-2016-6258?
Any version of Xen prior to 4.7.1, including 3.4.x, 4.0.x, 4.1.x, 4.2.x, 4.3.x, 4.4.x, 4.5.x, and 4.6.x, are considered vulnerable to CVE-2016-6258.
What is the impact of CVE-2016-6258 on XenServer?
XenServer versions including 6.0, 6.1, 6.2, 6.5, and 7.0 are affected by CVE-2016-6258, making them vulnerable to privilege escalation attacks.