What’s Vulnerable › Vulnerabilities

CVE-2018-7542

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-02-27 · updated 2026-06-17
• Weakness: CWE-476

Description

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.

Affected products

• Debian Linux: 9.0
• xen: from 4.8.0 through 4.10.0

References

• http://www.securitytracker.com/id/1040776
• https://security.gentoo.org/glsa/201810-06
• https://www.debian.org/security/2018/dsa-4131
• https://xenbits.xen.org/xsa/advisory-256.html
• http://www.securitytracker.com/id/1040776
• https://security.gentoo.org/glsa/201810-06
• https://www.debian.org/security/2018/dsa-4131
• https://xenbits.xen.org/xsa/advisory-256.html

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