WithSecure Client Security Scanning Engine denial of service

Summaryinfo

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 rated as problematic. The affected element is an unknown function of the component Scanning Engine. Performing a manipulation results in denial of service. This vulnerability was named CVE-2023-42520. The attack may be initiated remotely. There is no available exploit.

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 classified as problematic. This affects an unknown function of the component Scanning Engine. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Certain WithSecure products allow a remote crash of a scanning engine via unpacking of crafted data files. 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 presented 09/18/2023. It is possible to read the advisory at withsecure.com. This vulnerability is uniquely identified as CVE-2023-42520 since 09/11/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

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-2023-46953). Statistical analysis made it clear that VulDB provides the best quality 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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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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