PT-2018-18146 · Xen+1 · Xen+1

Ian Jackson · Published 2018-02-27 · Updated 2024-06-15 · CVE-2018-7542

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Xen versions 4.8.x through 4.10.x

Description An issue in Xen allows x86 PVH guest OS users to cause a denial of service by leveraging the mishandling of configurations that lack a Local APIC, resulting in a NULL pointer dereference and hypervisor crash.

Recommendations For Xen versions 4.8.x through 4.10.x, consider configuring the Local APIC properly to prevent the denial of service. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2018-7542

DSA-4131-1

OPENSUSE-SU-2018_1274-1

OPENSUSE-SU-2024:11520-1

SUSE-SU-2018:1184-1

Affected Products

Suse

Xen

References · 119

• https://nvd.nist.gov/vuln/detail/CVE-2018-7542 · Security Note
• https://xenbits.xen.org/xsa/advisory-256.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11520-1 · Vendor Advisory
• https://security.gentoo.org/glsa/201810-06 · Vendor Advisory
• https://debian.org/security/2018/dsa-4131 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-7542 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4131-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2018:1184-1 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2018-7542 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-7542 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-7542 · Vendor Advisory
• https://suse.com/security/cve/CVE-2017-8309 · Note
• https://suse.com/security/cve/CVE-2016-10025 · Note
• https://suse.com/security/cve/CVE-2016-8910 · Note
• https://suse.com/security/cve/CVE-2020-15565 · Note