Vulnerability identifier: #VU35124

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-3983

CWE-ID: CWE-824

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Atlantis Word Processor
Client/Desktop applications / Multimedia software

Vendor: Atlantis Security

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

An exploitable uninitialized pointer vulnerability exists in the Word document parser of the the Atlantis Word Processor. A specially crafted document can cause an array fetch to return an uninitialized pointer and then performs some arithmetic before writing a value to the result. Usage of this uninitialized pointer can allow an attacker to corrupt heap memory resulting in code execution under the context of the application. An attacker must convince a victim to open a document in order to trigger this vulnerability.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Atlantis Word Processor: 3.0.2.3 - 3.0.2.5

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External links
http://talosintelligence.com/vulnerability_reports/TALOS-2018-0651

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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.