NULL Pointer Dereference Affecting xen package, versions <4.8.3+comet2+shim4.10.0+comet3-1+deb9u5


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.06% (27th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-DEBIAN13-XEN-5701284
  • published27 Feb 2018
  • disclosed27 Feb 2018

Introduced: 27 Feb 2018

CVE-2018-7542  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Debian:13 xen to version 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.