#VU77235 Input validation error in Microsoft products - CVE-2023-29331

Vulnerability identifier: #VU77235

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft .NET Framework
Server applications / Frameworks for developing and running applications
Visual Studio
Universal components / Libraries / Software for developers
.NET
Other software / Other software solutions

Vendor: Microsoft

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
Install updates from vendor's website.

Vulnerable software versions

Microsoft .NET Framework: 2.0, 3.0 Service Pack 2 - 3.0, 3.5 - 3.5.1, 4.6.2, 4.7 - 4.7.2, 4.8 - 4.8.1

Visual Studio: 17.0.0 17.0.31903.59, 17.2.0 17.2.32505.173, 17.4.0 17.4.33103.184, 17.6.0 17.6.33712.159

.NET: 6.0.0, 7.0.0

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-29331

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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.