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CVE-2013-4371

4.4 · MEDIUM

Use-after-free vulnerability in the libxl_list_cpupool function in the libxl toolstack library in Xen 4.2.x and 4.3.x, when running "under memory pressure," returns the original pointer when the re…

Published Oct 17, 2013xenCWE-399EPSS 0.40%

Overview

CVE-2013-4371 is a medium-severity vulnerability affecting xen xen. It was published on October 17, 2013 and has a CVSS 2.0 base score of 4.4 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Use-after-free vulnerability in the libxl_list_cpupool function in the libxl toolstack library in Xen 4.2.x and 4.3.x, when running "under memory pressure," returns the original pointer when the realloc function fails, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors.

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

Refsecurity.gentoo.org/glsa/glsa-201407-03.xmlRefwww.openwall.com/lists/oss-security/2013/10/10/12Refsecurity.gentoo.org/glsa/glsa-201407-03.xmlRefwww.openwall.com/lists/oss-security/2013/10/10/12

How CyberStrike helps

Frequently asked questions

What is CVE-2013-4371?

CVE-2013-4371 is a medium-severity vulnerability affecting xen xen. It was published on October 17, 2013 and has a CVSS 2.0 base score of 4.4 (MEDIUM).

How severe is CVE-2013-4371?

This vulnerability has a CVSS 2.0 base score of 4.4, 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-2013-4371?

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-2013-4371?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-4371 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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