NULL pointer dereference in Xen - CVE-2018-7542
Published: February 28, 2018 / Updated: July 28, 2020
Vulnerability identifier: #VU10778
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-7542
CWE-ID: CWE-476
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Xen Project
Affected software:
Xen
Xen
Detailed vulnerability description
The vulnerability allows an adjacent attacker to cause DoS condition on the target system.
The vulnerability exists due to a NULL pointer dereference in multiple paths without the presence of a Local APIC. An adjacent attacker can crash the hypervisor and cause a denial of service.
How to mitigate CVE-2018-7542
Install update from vendor's website.