WithSecure Client Security Scanning Engine denial of service

Summaryinfo

A vulnerability categorized as problematic has been discovered in WithSecure Client Security, Server Security, Email and Server Security, Elements Endpoint Protection, Client Security for Mac, Linux Security, Linux Protection and Atlant. The impacted element is an unknown function of the component Scanning Engine. Executing a manipulation can lead to denial of service. The identification of this vulnerability is CVE-2023-42521. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in WithSecure Client Security, Server Security, Email and Server Security, Elements Endpoint Protection, Client Security for Mac, Linux Security, Linux Protection and Atlant. It has been declared as problematic. This vulnerability affects an unknown functionality of the component Scanning Engine. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

Certain WithSecure products allow a remote crash of a scanning engine via processing of a compressed file. This affects WithSecure Client Security 15, WithSecure Server Security 15, WithSecure Email and Server Security 15, WithSecure Elements Endpoint Protection 17 and later, WithSecure Client Security for Mac 15, WithSecure Elements Endpoint Protection for Mac 17 and later, Linux Security 64 12.0 , Linux Protection 12.0, and WithSecure Atlant (formerly F-Secure Atlant) 1.0.35-1.

The weakness was shared 09/18/2023. The advisory is shared for download at withsecure.com. This vulnerability was named CVE-2023-42521 since 09/11/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-46954). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• WithSecure

Name

• Atlant
• Client Security
• Client Security for Mac
• Elements Endpoint Protection
• Email and Server Security
• Linux Protection
• Linux Security
• Server Security

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Once again VulDB remains the best source for vulnerability data.

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