Ubuntu update for dotnet6



Risk High
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2023-24936
CVE-2023-29331
CVE-2023-29337
CVE-2023-32032
CVE-2023-33128
CWE-ID CWE-264
CWE-20
CWE-362
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

dotnet-host-7.0 (Ubuntu package)
Operating systems & Components / Operating system package or component

dotnet-runtime-6.0 (Ubuntu package)
Operating systems & Components / Operating system package or component

dotnet-runtime-7.0 (Ubuntu package)
Operating systems & Components / Operating system package or component

dotnet7 (Ubuntu package)
Operating systems & Components / Operating system package or component

dotnet6 (Ubuntu package)
Operating systems & Components / Operating system package or component

dotnet-sdk-7.0 (Ubuntu package)
Operating systems & Components / Operating system package or component

dotnet-sdk-6.0 (Ubuntu package)
Operating systems & Components / Operating system package or component

aspnetcore-runtime-7.0 (Ubuntu package)
Operating systems & Components / Operating system package or component

dotnet-host (Ubuntu package)
Operating systems & Components / Operating system package or component

dotnet-hostfxr-6.0 (Ubuntu package)
Operating systems & Components / Operating system package or component

dotnet-hostfxr-7.0 (Ubuntu package)
Operating systems & Components / Operating system package or component

aspnetcore-runtime-6.0 (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU77237

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-24936

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in .NET, .NET Framework, and Visual Studio, 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 - 23.04

dotnet-host-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet7 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet6 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-sdk-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-sdk-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

aspnetcore-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-host (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

aspnetcore-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6161-1


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.

2) Input validation error

EUVDB-ID: #VU77235

Risk: Medium

CVSSv4.0: 6.6 [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/E:U/U:Green]

CVE-ID: CVE-2023-29331

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, .NET Framework, 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 - 23.04

dotnet-host-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet7 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet6 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-sdk-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-sdk-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

aspnetcore-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-host (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

aspnetcore-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6161-1


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.

3) Race condition

EUVDB-ID: #VU77278

Risk: Medium

CVSSv4.0: 4.4 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-29337

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to a race condition in NuGet Client. A remote user can exploit the race and execute arbitrary code on the target system.

Mitigation

Update the affected package dotnet6 to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

dotnet-host-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet7 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet6 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-sdk-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-sdk-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

aspnetcore-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-host (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

aspnetcore-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6161-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

4) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU77231

Risk: Low

CVSSv4.0: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-32032

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 .NET and Visual Studio, 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 - 23.04

dotnet-host-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet7 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet6 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-sdk-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-sdk-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

aspnetcore-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-host (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

aspnetcore-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6161-1


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.

5) Input validation error

EUVDB-ID: #VU77229

Risk: Medium

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

CVE-ID: CVE-2023-33128

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to insufficient validation of user-supplied input in .NET and Visual Studio. A remote user can pass specially crafted input to the application and execute arbitrary code on the target system.

Mitigation

Update the affected package dotnet6 to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 23.04

dotnet-host-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet7 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet6 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-sdk-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-sdk-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

aspnetcore-runtime-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

dotnet-host (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

dotnet-hostfxr-7.0 (Ubuntu package): before 7.0.107-0ubuntu1~22.04.1

aspnetcore-runtime-6.0 (Ubuntu package): before 6.0.118-0ubuntu1~22.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6161-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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



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