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CVE-2019-0820

Good to know:

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Date: May 16, 2019

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.

Language: C#

Severity Score

Related Resources (5)

https://access.redhat.com/security/cve/CVE-2019-0820
https://access.redhat.com/errata/RHSA-2019:1259
https://nvd.nist.gov/vuln/detail/CVE-2019-0820
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820
https://www.mend.io/vulnerability-database/CVE-2019-0820

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Inefficient Regular Expression Complexity

CWE-1333

Top Fix

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Upgrade to version System.Text.RegularExpressions - 4.3.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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