Resource exhaustion in Microsoft .NET Core - CVE-2019-0820

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Main Vulnerability Database Vulnerabilities #VU64730

Resource exhaustion in Microsoft .NET Core - CVE-2019-0820

Published: June 28, 2022


Vulnerability identifier: #VU64730
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-0820
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists when .NET Framework and .NET Core improperly process RegEx strings. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


Affected software

Microsoft .NET Core
IBM Robotic Process Automation
Live Optics Collector

How to mitigate CVE-2019-0820

Install updates from vendor's website.

Microsoft .NET Core - addressed in versions 1.0.16, 1.1.13, 2.1.11, 2.2.5
IBM Robotic Process Automation - update to 21.0.1.5
Live Optics Collector - update to 25.4.10.191

External References

Related Security Bulletins