WithSecure Client Security Antivirus 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, Elements Endpoint Protection for Mac, Linux Security and Linux Protection. It has been rated as problematic. This impacts an unknown function of the component Antivirus Engine. Performing a manipulation results in denial of service. This vulnerability is known as CVE-2023-47263. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in WithSecure Client Security, Server Security, Email and Server Security, Elements Endpoint Protection, Client Security for Mac, Elements Endpoint Protection for Mac, Linux Security and Linux Protection. This affects an unknown function of the component Antivirus 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 Denial of Service (DoS) in the antivirus engine when scanning a fuzzed PE32 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, WithSecure Linux Security 64 12.0, WithSecure Linux Protection 12.0, and WithSecure Atlant (formerly F-Secure Atlant) 15 and later.

The weakness was published 11/16/2023. It is possible to read the advisory at withsecure.com. This vulnerability is uniquely identified as CVE-2023-47263 since 11/05/2023. 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-2023-51394). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• WithSecure

Name

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

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion