Ubuntu update for dotnet6

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

Update the affected package dotnet6 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

dotnet-host (Ubuntu package): before 6.0.109-0ubuntu1~22.04.1

dotnet-sdk-6.0 (Ubuntu package): before 6.0.109-0ubuntu1~22.04.1

dotnet-runtime-6.0 (Ubuntu package): before 6.0.109-0ubuntu1~22.04.1

dotnet6 (Ubuntu package): before 6.0.109-0ubuntu1~22.04.1

dotnet-hostfxr-6.0 (Ubuntu package): before 6.0.109-0ubuntu1~22.04.1

aspnetcore-runtime-6.0 (Ubuntu package): before 6.0.109-0ubuntu1~22.04.1

External links

http://ubuntu.com/security/notices/USN-5609-1

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.