#VU8427 Privilege escalation in Xen - CVE-2017-14319

Vulnerability identifier: #VU8427

Vulnerability risk: Low

CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2017-14319

CWE-ID: CWE-264

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

Vulnerable software:
Xen

Software vendor:
Xen Project

The vulnerability allows an adjacent attacker to gain elevated privileges or cause DoS condition on the host system.

The weakness exists due to a flaw in grant unmapping. A local attacker on an x86 PV guest system can gain elevated privileges on the host system or cause the hypervisor to crash.

Install update from vendor's website.

• http://xenbits.xen.org/xsa/advisory-234.html