Fedora 37 update for dotnet6.0, dotnet7.0



Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-35390
CVE-2023-38180
CWE-ID CWE-20
Exploitation vector Network
Public exploit Vulnerability #2 is being exploited in the wild.
Vulnerable software
 Fedora
Operating systems & Components / Operating system

dotnet7.0
Operating systems & Components / Operating system package or component

dotnet6.0
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU79182

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-35390

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in .NET and Visual Studio. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary code on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 37

dotnet7.0: before 7.0.110-1.fc37

dotnet6.0: before 6.0.121-1.fc37

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2023-25112489ab


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: #VU79145

Risk: High

CVSSv4.0: 8.7 [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:A/U:Amber]

CVE-ID: CVE-2023-38180

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. A remote attacker can send  specially crafted input to the application and perform a denial of service (DoS) attack.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 37

dotnet7.0: before 7.0.110-1.fc37

dotnet6.0: before 6.0.121-1.fc37

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2023-25112489ab


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?

Yes. This vulnerability is being exploited in the wild.



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