CVE-2017-10911: n/a vulnerability

CVE-2017-10911: The make_response function in drivers/block/xen-blkback/blkback.c in the Linux kernel before 4.11.8 allows...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 17:50 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw can let a guest virtual machine read small amounts of uninitialized kernel memory from the Xen host or another guest through the Linux Xen block backend. The issue is serious for providers running untrusted guests, because it crosses virtualization isolation boundaries. Exposure is most likely on Xen virtualization hosts using the Linux xen-blkback block backend with kernels older than 4.11.8 or without vendor backports. Risk is highest where guests are untrusted or tenant-controlled. Treat this as high priority for Xen infrastructure with untrusted guests. It can expose sensitive kernel memory across isolation boundaries, but the provided sources do not show active exploitation. Patch and reboot affected virtualization hosts through normal emergency maintenance. Mitigation focus: Update affected host kernels to 4.11.8 or vendor backported fixed packages.; Apply relevant Xen, Debian, Gentoo, or distribution security guidance for XSA-216.; Prioritize multi-tenant Xen hosts and environments with untrusted guest administrators..

Prepared: Jun 13, 2026, 04:25 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 5, 2017, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://xenbits.xen.org/xsa/advisory-216.htmlCVE reference · x_refsource_CONFIRM
[debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security updateCVE reference · mailing-list, x_refsource_MLIST
GLSA-201708-03CVE reference · vendor-advisory, x_refsource_GENTOO
https://github.com/torvalds/linux/commit/089bc0143f489bd3a4578bdff5f4ca68fb26f341CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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