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CVE-2014-8134

3.3 · LOW

The paravirt_ops_setup function in arch/x86/kernel/kvm.c in the Linux kernel through 3.18 uses an improper paravirt_enabled setting for KVM guest kernels, which makes it easier for guest OS users t…

Published Dec 12, 2014linuxEPSS 0.70%

Overview

CVE-2014-8134 is a low-severity vulnerability affecting linux linux_kernel. It was published on December 12, 2014 and has a CVSS 3.1 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The paravirt_ops_setup function in arch/x86/kernel/kvm.c in the Linux kernel through 3.18 uses an improper paravirt_enabled setting for KVM guest kernels, which makes it easier for guest OS users to bypass the ASLR protection mechanism via a crafted application that reads a 16-bit value.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel 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
linuxlinux_kernel0Affected

References

Reflists.opensuse.org/opensuse-security-announce/2015-03/msg00010.htmlReflists.opensuse.org/opensuse-security-announce/2015-03/msg00025.htmlReflists.opensuse.org/opensuse-security-announce/2015-04/msg00009.htmlReflists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlRefpeople.canonical.com/~ubuntu-security/cve/2014/CVE-2014-8134.htmlRefrhn.redhat.com/errata/RHSA-2016-0855.htmlRefsecunia.com/advisories/62336Refwww.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlRefwww.securityfocus.com/bid/71650Refwww.spinics.net/lists/kvm/msg111458.html

How CyberStrike helps

Frequently asked questions

What is CVE-2014-8134?

CVE-2014-8134 is a low-severity vulnerability affecting linux linux_kernel. It was published on December 12, 2014 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2014-8134?

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. 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-2014-8134?

Check the references section for vendor advisories and patches from linux. Update linux_kernel 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-2014-8134?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-8134 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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