CVE-2014-8866

Severity: medium (CVSS 4.7 v2.0)
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: 2014-12-01 · updated 2026-06-17
Weakness: CWE-17

Description

The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode.

Affected products

Debian Linux: 7.0
Opensuse: 13.1, 13.2
xen: 3.3.0, 3.3.1, 3.3.2, 3.4.0, 3.4.1, 3.4.2 (+22)

References

http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html
http://secunia.com/advisories/59937
http://secunia.com/advisories/62672
http://support.citrix.com/article/CTX200288
http://support.citrix.com/article/CTX201794
http://www.debian.org/security/2015/dsa-3140
http://www.securityfocus.com/bid/71332
http://xenbits.xen.org/xsa/advisory-111.html
https://security.gentoo.org/glsa/201504-04
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html

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