System.Text.RegularExpressions-1.0.24212.01.dll: 1 vulnerabilities (highest severity is: 7.5) - autoclosed

[mend-bolt-for-github[bot]]

Vulnerable Library - System.Text.RegularExpressions-1.0.24212.01.dll

System.Text.RegularExpressions

Library home page: https://api.nuget.org/packages/system.text.regularexpressions.4.1.0.nupkg

Path to vulnerable library: /obj/pkgs/system.text.regularexpressions/4.1.0/ref/net463/System.Text.RegularExpressions.dll,/obj/pkgs/system.text.regularexpressions/4.3.0/lib/net463/System.Text.RegularExpressions.dll,/obj/pkgs/system.text.regularexpressions/4.1.0/lib/net463/System.Text.RegularExpressions.dll,/obj/pkgs/system.text.regularexpressions/4.3.0/ref/net463/System.Text.RegularExpressions.dll

Found in HEAD commit: ebe7c6237e41b2d6f63ad16df6b50fa372ea6b4d

Vulnerabilities

CVE	Severity	CVSS	Dependency	Type	Fixed in (System.Text.RegularExpressions version)	Remediation Available
CVE-2019-0820	High	7.5	System.Text.RegularExpressions-1.0.24212.01.dll	Direct	System.Text.RegularExpressions - 4.3.1	❌

Details

CVE-2019-0820

### Vulnerable Library - System.Text.RegularExpressions-1.0.24212.01.dll

System.Text.RegularExpressions

Library home page: https://api.nuget.org/packages/system.text.regularexpressions.4.1.0.nupkg

Path to vulnerable library: /obj/pkgs/system.text.regularexpressions/4.1.0/ref/net463/System.Text.RegularExpressions.dll,/obj/pkgs/system.text.regularexpressions/4.3.0/lib/net463/System.Text.RegularExpressions.dll,/obj/pkgs/system.text.regularexpressions/4.1.0/lib/net463/System.Text.RegularExpressions.dll,/obj/pkgs/system.text.regularexpressions/4.3.0/ref/net463/System.Text.RegularExpressions.dll

Dependency Hierarchy: - :x: **System.Text.RegularExpressions-1.0.24212.01.dll** (Vulnerable Library)

Found in HEAD commit: ebe7c6237e41b2d6f63ad16df6b50fa372ea6b4d

Found in base branch: main

### 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: https://github.com/advisories/GHSA-cmhx-cq75-c4mj

Release Date: 2019-05-16

Fix Resolution: System.Text.RegularExpressions - 4.3.1

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