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.
CVE-2017-10911
MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence
Score 6.5 from GitHub Security Advisory published 2022-05-14. NVD baseline CVSS 6.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0
A fix is available — apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5(medium)
- EPSS
- 35.7%
- KEV
- Not listed
Published
July 5, 2017
Last Modified
May 13, 2026
References (22)
- cve@mitrehttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=089bc0143f489bd3a4578bdff5f4ca68fb26f341
- cve@mitrehttp://www.debian.org/security/2017/dsa-3920
- cve@mitrehttp://www.debian.org/security/2017/dsa-3927
- cve@mitrehttp://www.debian.org/security/2017/dsa-3945
- cve@mitrehttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.8
- cve@mitrehttp://www.securityfocus.com/bid/99162
- cve@mitrehttp://www.securitytracker.com/id/1038720
- cve@mitrehttps://github.com/torvalds/linux/commit/089bc0143f489bd3a4578bdff5f4ca68fb26f341
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- cve@mitrehttps://security.gentoo.org/glsa/201708-03
- cve@mitrehttps://xenbits.xen.org/xsa/advisory-216.html
- af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=089bc0143f489bd3a4578bdff5f4ca68fb26f341
- af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2017/dsa-3920
- af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2017/dsa-3927
- af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2017/dsa-3945
Frequently asked(5)
What is CVE-2017-10911?
CVE-2017-10911 is a medium vulnerability published on July 5, 2017. 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…
When was CVE-2017-10911 disclosed?
CVE-2017-10911 was first published in the National Vulnerability Database on July 5, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-10911 actively exploited?
CVE-2017-10911 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-10911?
CVE-2017-10911 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2017-10911?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-10911, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
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