Red Hat Enterprise Linux 8 update for .NET Core 3.1

1) Input validation error

EUVDB-ID: #VU67286

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-38013

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in .NET Core and Visual Studio. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

dotnet3.1 (Red Hat package): 3.1.419-1.el8_6 - 3.1.422-1.el8_6

Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support: 8.6

Red Hat Enterprise Linux Server - TUS: 8.6

Red Hat Enterprise Linux Server - AUS: 8.6

Red Hat Enterprise Linux for x86_64 - Extended Update Support: 8.6

Red Hat CodeReady Linux Builder for x86_64: 8.0

Red Hat Enterprise Linux for x86_64: 8.0

External links

http://access.redhat.com/errata/RHSA-2022:6523

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.