Home/CVE/A denial of service vulnerability exists when System.IO.Pipelines improperly handles requests, aka "System.IO.Pipelines
CVE

CVE-2018-8409

A denial of service vulnerability exists when System.IO.Pipelines improperly handles requests, aka "System.IO.Pipelines

A denial of service vulnerability exists when System.IO.Pipelines improperly handles requests, aka "System.IO.Pipelines Denial of Service." This affects .NET Core 2.1, System.IO.Pipelines, ASP.NET Core 2.1.

HIGH · CVSS 7.5 EPSS 0.1435
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 5% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
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Affected Products & Versions

3
microsoft .net core>= 2.1 and < 2.1.4
microsoft asp.net core>= 2.1 and < 2.1.4
microsoft system.io.pipelinesall versions
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Affected Packages

3
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
NuGet Microsoft.AspNetCore.All HIGH fixed in 2.1.4
NuGet Microsoft.AspNetCore.App HIGH fixed in 2.1.4
NuGet System.IO.Pipelines HIGH fixed in 4.5.1
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Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Sep 2018 · 12:29 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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Vendor Advisories

1
msrcCVE-2018-8409Denial of Service
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References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/105223Third Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8409PatchVendor Advisory
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