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Fencer Vulns
high 7.5

CVE-2023-38178 json

.NET Core and Visual Studio Denial of Service Vulnerability

published 2023-08-08 3 y ago modified 2026-09-08 2 mo ago also BIT-dotnet-2023-38178 , BIT-dotnet-sdk-2023-38178 , EUVD-2023-2329 , GHSA-p57v-gv7q-4xfm

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

.NET Core and Visual Studio Denial of Service Vulnerability

Patch / fix

  • nuget Microsoft.AspNetCore.App.Runtime.win-arm64 7.0.10
  • nuget Microsoft.AspNetCore.App.Runtime.win-arm 7.0.10
  • nuget Microsoft.AspNetCore.App.Runtime.win-x64 7.0.10
  • nuget Microsoft.AspNetCore.App.Runtime.win-x86 7.0.10
  • nuget Microsoft.NetCore.App.Runtime.win-arm 7.0.10
  • nuget Microsoft.NetCore.App.Runtime.win-arm64 7.0.10
  • nuget Microsoft.NetCore.App.Runtime.win-x64 7.0.10
  • nuget Microsoft.NetCore.App.Runtime.win-x86 7.0.10
  • bitnami dotnet 6.0.1
  • bitnami dotnet-sdk 6.0.1
  • Microsoft .NET 6.0 6.0.21
  • Microsoft Microsoft Visual Studio 2022 version 17.2 17.2.18
  • Microsoft Microsoft Visual Studio 2022 version 17.4 17.4.10
  • dotnet6 Ubuntu 22.04 LTS 6.0.121-0ubuntu1~22.04.1
  • dotnet7 Ubuntu 22.04 LTS 7.0.110-0ubuntu1~22.04.1

ubuntu advisories UBUNTU-CVE-2023-38178

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • dotnet7-build Alpine 3.19, Alpine 3.18 7.0.110-r0
  • dotnet7-runtime Alpine 3.19, Alpine 3.18 7.0.10-r0

alpine advisories ALPINE-CVE-2023-38178

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-38178 updated cvss 7.5

dotnet: ASP.NET Kestrel stream flow control leads to Denial of Service

  • Red Hat .NET 6.0 on Red Hat Enterprise Linux rh-dotnet60, rh-dotnet60-build, rh-dotnet60-runtime Red Hat Enterprise Linux 8 dotnet, dotnet6.0, dotnet7.0, dotnet-host, dotnet-sdk-6.0, dotnet-sdk-7.0, +17 more Red Hat Enterprise Linux 9 dotnet6.0, dotnet7.0, dotnet-host, dotnet-sdk-6.0, dotnet-sdk-7.0, dotnet-hostfxr-6.0, +16 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-165-04 updated cvss 7.5

Siemens ST7 ScadaConnect

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

2.59% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
nuget Microsoft.AspNetCore.App.Runtime.win-arm64
>=7.0.0, <7.0.10
7.0.10
nuget Microsoft.AspNetCore.App.Runtime.win-arm
>=7.0.0, <7.0.10
7.0.10
nuget Microsoft.AspNetCore.App.Runtime.win-x64
>=7.0.0, <7.0.10
7.0.10
nuget Microsoft.AspNetCore.App.Runtime.win-x86
>=7.0.0, <7.0.10
7.0.10
nuget Microsoft.NetCore.App.Runtime.win-arm
>=7.0.0, <7.0.10
7.0.10
nuget Microsoft.NetCore.App.Runtime.win-arm64
>=7.0.0, <7.0.10
7.0.10
nuget Microsoft.NetCore.App.Runtime.win-x64
>=7.0.0, <7.0.10
7.0.10
nuget Microsoft.NetCore.App.Runtime.win-x86
>=7.0.0, <7.0.10
7.0.10
bitnami dotnet
>=6.0.0, <6.0.1
6.0.1
bitnami dotnet-sdk
>=6.0.0, <6.0.1
6.0.1

Affected products

  • Microsoft .NET 6.0
  • Microsoft Microsoft Visual Studio 2022 version 17.2
  • Microsoft Microsoft Visual Studio 2022 version 17.4

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.