Malwarebytes 4.x/5.x heap-based overflow

Summaryinfo

A vulnerability classified as critical was found in Malwarebytes 4.x/5.x. This impacts an unknown function. Such manipulation leads to heap-based overflow. This vulnerability is referenced as CVE-2023-43688. No exploit is available.

Detailsinfo

A vulnerability was found in Malwarebytes 4.x/5.x and classified as critical. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Malwarebytes 4.x and 5.x (and Nebula 2020-10-21 and later). There is a Heap buffer overflow in various buffer encryption utilities.

The advisory is available at malwarebytes.com. This vulnerability is handled as CVE-2023-43688 since 09/21/2023. The exploitation is known to be easy. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/09/2026).

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

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Productinfo

Type

• Anti-Malware Software

Name

• Malwarebytes

Version

• 4.x
• 5.x

CPE 2.3info

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CPE 2.2info

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