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CVE-2019-0820

UNKNOWN
Published 2019-05-16T18:17:00
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No CVSS data available

Description

A denial of service vulnerability exists when .NET Framework and .NET Core improperly process RegEx strings, aka '.NET Framework and .NET Core Denial of Service Vulnerability'. This CVE ID is unique from CVE-2019-0980, CVE-2019-0981.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Microsoft

Microsoft .NET Framework 4.5.2

Affected Versions:

Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2012 Windows Server 2012 (Server Core installation) Windows 8.1 for 32-bit systems Windows 8.1 for x64-based systems Windows Server 2012 R2 Windows RT 8.1 Windows Server 2012 R2 (Server Core installation) Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft

Microsoft .NET Framework 4.6

Affected Versions:

Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft

.NET Core

Affected Versions:

1 1.1 2.1 2.2
Microsoft

Microsoft .NET Framework 4.7.2

Affected Versions:

Windows 10 Version 1803 for 32-bit Systems Windows 10 Version 1803 for x64-based Systems Windows Server, version 1803 (Server Core Installation) Windows 10 Version 1803 for ARM64-based Systems Windows Server 2019 Windows Server 2019 (Server Core installation)
Microsoft

Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2

Affected Versions:

Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2008 R2 for x64-based Systems Service Pack 1 Windows Server 2012 Windows Server 2012 (Server Core installation) Windows 8.1 for 32-bit systems Windows 8.1 for x64-based systems Windows Server 2012 R2 Windows RT 8.1 Windows Server 2012 R2 (Server Core installation)
Microsoft

Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2

Affected Versions:

Windows Server 2016 Windows Server 2016 (Server Core installation)
Microsoft

Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2012

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2012 R2

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows RT 8.1

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2016

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for 32-bit Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for x64-based Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation)

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1809 for 32-bit Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1809 for x64-based Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2019

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server 2019 (Server Core installation)

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1903 for 32-bit Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows 10 Version 1903 for x64-based Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 4.8 on Windows Server, version 1903 (Server Core installation)

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 3.5

Affected Versions:

Windows Server 2012 Windows Server 2012 (Server Core installation) Windows 8.1 for 32-bit systems Windows 8.1 for x64-based systems Windows Server 2012 R2 Windows Server 2012 R2 (Server Core installation) Windows 10 for 32-bit Systems Windows 10 for x64-based Systems Windows Server 2016 Windows 10 Version 1607 for 32-bit Systems Windows 10 Version 1607 for x64-based Systems Windows Server 2016 (Server Core installation) Windows 10 Version 1703 for 32-bit Systems Windows 10 Version 1703 for x64-based Systems Windows 10 Version 1709 for 32-bit Systems Windows 10 Version 1709 for x64-based Systems Windows 10 Version 1803 for 32-bit Systems Windows 10 Version 1803 for x64-based Systems Windows Server, version 1803 (Server Core Installation) Windows 10 Version 1803 for ARM64-based Systems Windows 10 Version 1809 for 32-bit Systems Windows 10 Version 1809 for x64-based Systems Windows Server 2019 Windows Server 2019 (Server Core installation) Windows 10 Version 1709 for ARM64-based Systems
Microsoft

Microsoft .NET Framework 3.5 on Windows 10 Version 1903 for 32-bit Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 3.5 on Windows 10 Version 1903 for x64-based Systems

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 3.5 on Windows Server, version 1903 (Server Core installation)

Affected Versions:

unspecified
Microsoft

Microsoft .NET Framework 3.0

Affected Versions:

Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft

Microsoft .NET Framework 2.0

Affected Versions:

Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft

Microsoft .NET Framework 3.5.1

Affected Versions:

Windows 7 for 32-bit Systems Service Pack 1 Windows 7 for x64-based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 Windows Server 2008 R2 for x64-based Systems Service Pack 1

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

Regular Expression Denial of Service in System.Text.RegularExpressions

GHSA-cmhx-cq75-c4mj

Advisory Details

A denial of service vulnerability exists when .NET Framework and .NET Core improperly process RegEx strings, aka '.NET Framework and .NET Core Denial of Service Vulnerability'. This CVE ID is unique from CVE-2019-0980, CVE-2019-0981.

Affected Packages

NuGet System.Text.RegularExpressions
ECOSYSTEM: ≥4.3.0 <4.3.1

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2019-0820
WEB https://access.redhat.com/errata/RHSA-2019:1259
WEB https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820

Advisory provided by GitHub Security Advisory Database. Published: August 4, 2021, Modified: February 21, 2023

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820
https://access.redhat.com/errata/RHSA-2019:1259
Published: 2019-05-16T18:17:00
Last Modified: 2024-08-04T17:58:59.792Z
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