NULL pointer dereference in Xen - CVE-2016-10025
Published: January 26, 2017 / Updated: July 28, 2020
Vulnerability identifier: #VU32184
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-10025
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.
Affected software
Xen
xen (Alpine package)
xen
SUSE Linux
Fedora
Opensuse
xen (Alpine package)
xen
SUSE Linux
Fedora
Opensuse
How to mitigate CVE-2016-10025
Install update from vendor's website.
xen (Alpine package) - addressed in versions 4.6.3-r5, 4.6.3-r7
xen - addressed in versions 4.6.4-5.fc24, 4.7.1-6.fc25
xen - addressed in versions 4.6.4-5.fc24, 4.7.1-6.fc25