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CVE-2014-8866

4.7 · MEDIUM

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 v…

Published Dec 1, 2014debianCWE-17EPSS 0.43%

Overview

CVE-2014-8866 is a medium-severity vulnerability affecting debian debian_linux. It was published on December 1, 2014 and has a CVSS 2.0 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from debian. Update debian_linux to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Reflists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlReflists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlRefsecunia.com/advisories/59937Refsecunia.com/advisories/62672Refsupport.citrix.com/article/CTX200288Refsupport.citrix.com/article/CTX201794Refwww.debian.org/security/2015/dsa-3140Refwww.securityfocus.com/bid/71332Refxenbits.xen.org/xsa/advisory-111.htmlRefsecurity.gentoo.org/glsa/201504-04

How CyberStrike helps

Frequently asked questions

What is CVE-2014-8866?

CVE-2014-8866 is a medium-severity vulnerability affecting debian debian_linux. It was published on December 1, 2014 and has a CVSS 2.0 base score of 4.7 (MEDIUM).

How severe is CVE-2014-8866?

This vulnerability has a CVSS 2.0 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2014-8866?

Check the references section for vendor advisories and patches from debian. Update debian_linux to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2014-8866?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-8866 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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