What is CVE-2018-7542?

CVE-2018-7542 is a medium-severity vulnerability in Xen, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-02-27.

How severe is CVE-2018-7542?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Xen

CVE-2018-7542

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.

EPSS: 0.004 (31.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

Affected products

Xen
Debian Debian_linux — versions 9.0
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
cve@mitre.org (vdb-entry, x_refsource_SECTRACK)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)

Frequently asked questions

What is CVE-2018-7542?: CVE-2018-7542 is a medium-severity vulnerability in Xen, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-02-27.
How severe is CVE-2018-7542?: Medium severity. CVSS v3 base score is 6.5 out of 10.