Information Disclosure in Linux Kernel (CVE-2017-10911)
Summary
Vulnerability in Linux Kernel (CVE-2017-10911). Confidential information can be exposed externally.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2017-10911 has been found in Linux Kernel.
Confidential information can be exposed externally. CVSS score: 6.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Linux Kernel CVE-2017-10911" on the vendor's site.
CVE-2017-10911 (Linux Kernel) — CWE-200 / CVSS v3 6.5
Attack vector: local / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Information disclosure (CWE-200) exists in Linux Kernel.
Check the vendor advisory for the affected versions of Linux Kernel.
Severity: Medium (CVSS 6.5/10). Confidential information can be exposed externally.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Linux Kernel を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Alpine Linux ALPINE-CVE-2017-10911 xen Fixed in: 4.9.0-r0
- Debian DEBIAN-CVE-2017-10911 linux Fixed in: 4.11.11-1
- Ubuntu UBUNTU-CVE-2017-10911 linux Fixed in: 3.13.0-135.184
References
- advisory kernel.org
- advisory securityfocus.com
- advisory securitytracker.com
- patch git.kernel.org
- patch github.com
- patch xenbits.xen.org
- web debian.org
- web debian.org
- web debian.org
- web lists.debian.org
- web security.gentoo.org