CVE-2019-0820 (High) detected in system.text.regularexpressions.4.3.1.nupkg

[mend-bolt-for-github]

CVE-2019-0820 - High Severity Vulnerability

Vulnerable Library - system.text.regularexpressions.4.3.1.nupkg

Provides the System.Text.RegularExpressions.Regex class, an implementation of a regular expression e...

Library home page: https://api.nuget.org/packages/system.text.regularexpressions.4.3.1.nupkg

Dependency Hierarchy:

• ❌ system.text.regularexpressions.4.3.1.nupkg (Vulnerable Library)

Found in HEAD commit: 91079923b75210a1b9d2ff580fbfc39356b4a3f8

Found in base branch: master

Vulnerability 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.
Mend Note: After conducting further research, Mend has determined that CVE-2019-0820 only affects environments with versions 4.3.0 and 4.3.1 only on netcore50 environment of system.text.regularexpressions.nupkg.

Publish Date: 2019-05-16

URL: CVE-2019-0820

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-cmhx-cq75-c4mj

Release Date: 2019-05-16

Fix Resolution: System.Text.RegularExpressions - 4.3.1

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[mend-bolt-for-github]

✔️ This issue was automatically closed by WhiteSource because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the WhiteSource inventory.

[mend-bolt-for-github]

ℹ️ This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.