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Fencer Vulns
medium 6.8

CVE-2024-21319 json

Microsoft Identity Denial of service vulnerability

published 2024-01-09 2 y ago modified 2026-09-08 2 mo ago also BIT-dotnet-2024-21319 , BIT-dotnet-sdk-2024-21319 , EUVD-2024-0259 , GHSA-59j7-ghrg-fj52

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

Microsoft Identity Denial of service vulnerability

Patch / fix

  • nuget System.IdentityModel.Tokens.Jwt 5.7.0, 6.34.0, 7.1.2
  • nuget Microsoft.IdentityModel.JsonWebTokens 5.7.0, 6.34.0, 7.1.2
  • bitnami dotnet 6.0.26, 7.0.15, 8.0.1
  • bitnami dotnet-sdk 6.0.26, 7.0.15, 8.0.1
  • Microsoft .NET 6.0 6.0.26
  • Microsoft Microsoft Visual Studio 2022 version 17.2 17.2.23
  • Microsoft Microsoft Visual Studio 2022 version 17.6 17.6.11
  • Microsoft Microsoft Visual Studio 2022 version 17.4 17.4.15
  • Microsoft Microsoft Visual Studio 2022 version 17.8 17.8.4
  • Microsoft .NET 7.0 7.0.15
  • Microsoft .NET 8.0 8.0.1
  • Microsoft Microsoft Identity Model v6.0.0 forNuget 6.34.0
  • Microsoft Microsoft Identity Model v7.0.0 for Nuget 7.1.2
  • Microsoft Microsoft Identity Model v6.0.0 6.34.0
  • Microsoft Microsoft Identity Model v5.0.0 5.7.0
  • Microsoft Microsoft Identity Model v7.0.0 7.1.2
  • Microsoft Microsoft Identity Model v5.0.0 for Nuget 5.7.0
  • dotnet6 Ubuntu 22.04 LTS 6.0.126-0ubuntu1~22.04.1
  • dotnet7 Ubuntu 22.04 LTS 7.0.115-0ubuntu1~22.04.1

ubuntu advisories UBUNTU-CVE-2024-21319

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

  • rh-dotnet60-dotnet RHEL 6.0 DOTNET 6.0.126-1.el7_9
  • rh-dotnet60-dotnet-host RHEL 6.0 DOTNET 6.0.26-1.el7_9
  • rh-dotnet60-dotnet-sdk-6.0 RHEL 6.0 DOTNET 6.0.126-1.el7_9
  • rh-dotnet60-dotnet-hostfxr-6.0 RHEL 6.0 DOTNET 6.0.26-1.el7_9
  • rh-dotnet60-dotnet-runtime-6.0 RHEL 6.0 DOTNET 6.0.26-1.el7_9
  • rh-dotnet60-dotnet-templates-6.0 RHEL 6.0 DOTNET 6.0.126-1.el7_9
  • rh-dotnet60-aspnetcore-runtime-6.0 RHEL 6.0 DOTNET 6.0.26-1.el7_9
  • rh-dotnet60-dotnet-apphost-pack-6.0 RHEL 6.0 DOTNET 6.0.26-1.el7_9

red hat advisories RHSA-2024:0255RHSA-2024:0157RHSA-2024:0158RHSA-2024:0152RHSA-2024:0151RHSA-2024:0156

  • dotnet AlmaLinux 8 8.0.101-1.el8_9
  • dotnet-host AlmaLinux 8 8.0.1-1.el8_9
  • dotnet-sdk-8.0 AlmaLinux 8 8.0.101-1.el8_9
  • dotnet-hostfxr-8.0 AlmaLinux 8 8.0.1-1.el8_9
  • dotnet-runtime-8.0 AlmaLinux 8 8.0.1-1.el8_9
  • dotnet-templates-8.0 AlmaLinux 8 8.0.101-1.el8_9
  • aspnetcore-runtime-8.0 AlmaLinux 8 8.0.1-1.el8_9
  • dotnet-apphost-pack-8.0 AlmaLinux 8 8.0.1-1.el8_9

almalinux advisories ALSA-2024:0150ALSA-2024:0151ALSA-2024:0152ALSA-2024:0156ALSA-2024:0157ALSA-2024:0158

  • dotnet8.0 Rocky Linux 8 8.0.101-1.el8_9
  • dotnet7.0 Rocky Linux 8 7.0.115-1.el8_9
  • dotnet6.0 Rocky Linux 8 6.0.126-1.el8_9

rocky linux advisories RLSA-2024:0150RLSA-2024:0157RLSA-2024:0158

  • dotnet6-build Alpine 3.20, Alpine 3.19 6.0.126-r0
  • dotnet7-build Alpine 3.19 7.0.115-r0
  • dotnet6-runtime Alpine 3.20, Alpine 3.19 6.0.26-r0
  • dotnet7-runtime Alpine 3.19 7.0.15-r0

alpine advisories ALPINE-CVE-2024-21319

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-2024-21319 updated cvss 6.8

dotnet: .NET Denial of Service Vulnerability

  • Red Hat .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet60-dotnet 6.0.126-1.el7_9, rh-dotnet60-dotnet-host 6.0.26-1.el7_9, rh-dotnet60-dotnet-sdk-6.0 6.0.126-1.el7_9, rh-dotnet60-dotnet-hostfxr-6.0 6.0.26-1.el7_9, rh-dotnet60-dotnet-runtime-6.0 6.0.26-1.el7_9, rh-dotnet60-dotnet-templates-6.0 6.0.126-1.el7_9, +6 more Red Hat .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet60-dotnet 6.0.126-1.el7_9, rh-dotnet60-dotnet-host 6.0.26-1.el7_9, rh-dotnet60-dotnet-sdk-6.0 6.0.126-1.el7_9, rh-dotnet60-dotnet-hostfxr-6.0 6.0.26-1.el7_9, rh-dotnet60-dotnet-runtime-6.0 6.0.26-1.el7_9, rh-dotnet60-dotnet-templates-6.0 6.0.126-1.el7_9, +6 more Red Hat .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet60-dotnet 6.0.126-1.el7_9, rh-dotnet60-dotnet-host 6.0.26-1.el7_9, rh-dotnet60-dotnet-sdk-6.0 6.0.126-1.el7_9, rh-dotnet60-dotnet-hostfxr-6.0 6.0.26-1.el7_9, rh-dotnet60-dotnet-runtime-6.0 6.0.26-1.el7_9, rh-dotnet60-dotnet-templates-6.0 6.0.126-1.el7_9, +6 more
    fixed: vendor fix RHSA-2024:0255
  • Red Hat CodeReady Linux Builder (v. 8) dotnet 8.0.101-1.el8_9, dotnet-host 8.0.1-1.el8_9, dotnet6.0 6.0.126-1.el8_9, dotnet7.0 7.0.115-1.el8_9, dotnet8.0 8.0.101-1.el8_9, dotnet-sdk-6.0 6.0.126-1.el8_9, +27 more
    fixed: vendor fix RHSA-2024:0158
  • Red Hat CodeReady Linux Builder (v. 9) dotnet-host 8.0.1-1.el9_3, dotnet6.0 6.0.126-1.el9_3, dotnet7.0 7.0.115-1.el9_3, dotnet8.0 8.0.101-1.el9_3, dotnet-sdk-6.0 6.0.126-1.el9_3, dotnet-sdk-7.0 7.0.115-1.el9_3, +26 more
    fixed: vendor fix RHSA-2024:0156
  • Red Hat Enterprise Linux AppStream (v. 8) dotnet 8.0.101-1.el8_9, dotnet-host 8.0.1-1.el8_9, dotnet6.0 6.0.126-1.el8_9, dotnet7.0 7.0.115-1.el8_9, dotnet8.0 8.0.101-1.el8_9, dotnet-sdk-6.0 6.0.126-1.el8_9, +27 more
    fixed: vendor fix RHSA-2024:0158
  • Red Hat Enterprise Linux AppStream (v. 9) dotnet-host 8.0.1-1.el9_3, dotnet6.0 6.0.126-1.el9_3, dotnet7.0 7.0.115-1.el9_3, dotnet8.0 8.0.101-1.el9_3, dotnet-sdk-6.0 6.0.126-1.el9_3, dotnet-sdk-7.0 7.0.115-1.el9_3, +26 more
    fixed: vendor fix RHSA-2024:0156

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-25-100-02 updated cvss 6.8

Siemens SIDIS Prime

  • Siemens SIDIS Prime <V4.0.700
    affected: fixed in V4.0.700

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
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

2.89% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C
GitHub 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
OSV 3.1 6.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
nuget System.IdentityModel.Tokens.Jwt
<5.7.0
>=6.5.0, <6.34.0
>=7.0.0-preview, <7.1.2
5.7.0
6.34.0
7.1.2
nuget Microsoft.IdentityModel.JsonWebTokens
<5.7.0
>=6.5.0, <6.34.0
>=7.0.0-preview, <7.1.2
5.7.0
6.34.0
7.1.2
bitnami dotnet
>=6.0.0, <6.0.26
>=7.0.0, <7.0.15
>=8.0.0, <8.0.1
6.0.26
7.0.15
8.0.1
bitnami dotnet-sdk
>=6.0.0, <6.0.26
>=7.0.0, <7.0.15
>=8.0.0, <8.0.1
6.0.26
7.0.15
8.0.1

Affected products

  • Microsoft .NET 6.0
  • Microsoft Microsoft Visual Studio 2022 version 17.2
  • Microsoft Microsoft Visual Studio 2022 version 17.6
  • Microsoft Microsoft Visual Studio 2022 version 17.4
  • Microsoft Microsoft Visual Studio 2022 version 17.8
  • Microsoft .NET 7.0
  • Microsoft .NET 8.0
  • Microsoft Microsoft Identity Model v6.0.0 forNuget
  • Microsoft Microsoft Identity Model v7.0.0 for Nuget
  • Microsoft Microsoft Identity Model v6.0.0
  • Microsoft Microsoft Identity Model v5.0.0
  • Microsoft Microsoft Identity Model v7.0.0
  • Microsoft Microsoft Identity Model v5.0.0 for Nuget

Classification

Weakness
  • CWE-20 Improper Input Validation
  • 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.