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CVE-2017-15597

9.1 · CRITICAL

An issue was discovered in Xen through 4.9.x.

Published Oct 30, 2017CWE-119EPSS 2.83%

Overview

CVE-2017-15597 is a critical-severity vulnerability. It was published on October 30, 2017 and has a CVSS 3.0 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

An issue was discovered in Xen through 4.9.x. Grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. Other portions of code, however, did not match up with that assumption. When such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. A malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a Denial of Service. Privilege escalation and information leaks cannot be ruled out.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refwww.openwall.com/lists/oss-security/2017/10/24/3Refwww.securityfocus.com/bid/101564Refwww.securitytracker.com/id/1039653Refxenbits.xen.org/xsa/advisory-236.htmlReflists.debian.org/debian-lts-announce/2018/10/msg00009.htmlRefsupport.citrix.com/article/CTX229057Refwww.debian.org/security/2017/dsa-4050Refwww.openwall.com/lists/oss-security/2017/10/24/3Refwww.securityfocus.com/bid/101564Refwww.securitytracker.com/id/1039653

How CyberStrike helps

Frequently asked questions

What is CVE-2017-15597?

CVE-2017-15597 is a critical-severity vulnerability. It was published on October 30, 2017 and has a CVSS 3.0 base score of 9.1 (CRITICAL).

How severe is CVE-2017-15597?

This vulnerability has a CVSS 3.0 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-15597?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2017-15597?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-15597 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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