Vulnerability identifier: #VU64730

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2019-0820

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft .NET Core
Server applications / Frameworks for developing and running applications

Vendor: Microsoft

Description

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft .NET Core: 1.0 - 2.2

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CPE

• cpe:2.3:a:microsoft:microsoft_.net_core:2.2:*:*:*:*:*:*:*

External links
http://access.redhat.com/errata/RHSA-2019:1259
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0820

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?