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CVE-2017-10911

6.5 · MEDIUM

The make_response function in drivers/block/xen-blkback/blkback.c in the Linux kernel before 4.11.8 allows guest OS users to obtain sensitive information from host OS (or other guest OS) kernel mem…

Published Jul 5, 2017CWE-200EPSS 0.46%

Overview

CVE-2017-10911 is a medium-severity vulnerability. It was published on July 5, 2017 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

The make_response function in drivers/block/xen-blkback/blkback.c in the Linux kernel before 4.11.8 allows guest OS users to obtain sensitive information from host OS (or other guest OS) kernel memory by leveraging the copying of uninitialized padding fields in Xen block-interface response structures, aka XSA-216.

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

Refgit.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=089bc0143f489bd3a4578bdff5f4ca68fb26f341Refwww.debian.org/security/2017/dsa-3920Refwww.debian.org/security/2017/dsa-3927Refwww.debian.org/security/2017/dsa-3945Refwww.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.8Refwww.securityfocus.com/bid/99162Refwww.securitytracker.com/id/1038720GitHubgithub.com/torvalds/linux/commit/089bc0143f489bd3a4578bdff5f4ca68fb26f341Reflists.debian.org/debian-lts-announce/2018/09/msg00007.htmlRefsecurity.gentoo.org/glsa/201708-03

How CyberStrike helps

Frequently asked questions

What is CVE-2017-10911?

CVE-2017-10911 is a medium-severity vulnerability. It was published on July 5, 2017 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

How severe is CVE-2017-10911?

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-10911?

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-2017-10911?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-10911 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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