CVE-2014-7188

Severity: high (CVSS 8.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-10-02 · updated 2026-06-17
Weakness: CWE-399

Description

The hvm_msr_read_intercept function in arch/x86/hvm/hvm.c in Xen 4.1 through 4.4.x uses an improper MSR range for x2APIC emulation, which allows local HVM guests to cause a denial of service (host crash) or read data from the hypervisor or other guests via unspecified vectors.

Affected products

xen: 4.1.0, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5 (+10)

References

http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140199.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
http://secunia.com/advisories/61664
http://secunia.com/advisories/61858
http://secunia.com/advisories/61890
http://security.gentoo.org/glsa/glsa-201412-42.xml
http://support.citrix.com/article/CTX200218
http://support.citrix.com/article/CTX201794
http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf

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