Ubuntu update for dotnet6

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU68170

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-41032

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in the NuGet Client, which leads to security restrictions bypass and privilege escalation.

Mitigation

Update the affected package dotnet6 to the latest version.

Vulnerable software versions

Ubuntu: 22.04

dotnet-host (Ubuntu package): before 6.0.110-0ubuntu1~22.04.1

dotnet-sdk-6.0 (Ubuntu package): before 6.0.110-0ubuntu1~22.04.1

dotnet-runtime-6.0 (Ubuntu package): before 6.0.110-0ubuntu1~22.04.1

dotnet6 (Ubuntu package): before 6.0.110-0ubuntu1~22.04.1

dotnet-hostfxr-6.0 (Ubuntu package): before 6.0.110-0ubuntu1~22.04.1

aspnetcore-runtime-6.0 (Ubuntu package): before 6.0.110-0ubuntu1~22.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:22.04:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:dotnet-host_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:dotnet-sdk-6.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:dotnet-runtime-6.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:dotnet6_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:dotnet-hostfxr-6.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:aspnetcore-runtime-6.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

https://ubuntu.com/security/notices/USN-5670-1

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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