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CVE-2011-1780

6.1 · MEDIUM

The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different…

Published Jan 7, 2014xenCWE-20EPSS 0.70%

Overview

CVE-2011-1780 is a medium-severity vulnerability affecting xen xen. It was published on January 7, 2014 and has a CVSS 2.0 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread.

Remediation

Check the references section for vendor advisories and patches from xen. Update xen 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

Refrhn.redhat.com/errata/RHSA-2011-1065.htmlRefrhn.redhat.com/errata/RHSA-2011-1163.htmlRefwww.openwall.com/lists/oss-security/2011/07/07/3Refbugzilla.redhat.com/show_bug.cgi?id=702657Refrhn.redhat.com/errata/RHSA-2011-1065.htmlRefrhn.redhat.com/errata/RHSA-2011-1163.htmlRefwww.openwall.com/lists/oss-security/2011/07/07/3Refbugzilla.redhat.com/show_bug.cgi?id=702657

How CyberStrike helps

Frequently asked questions

What is CVE-2011-1780?

CVE-2011-1780 is a medium-severity vulnerability affecting xen xen. It was published on January 7, 2014 and has a CVSS 2.0 base score of 6.1 (MEDIUM).

How severe is CVE-2011-1780?

This vulnerability has a CVSS 2.0 base score of 6.1, 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-2011-1780?

Check the references section for vendor advisories and patches from xen. Update xen 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-2011-1780?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-1780 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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