Vulnerability identifier: #VU35830

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-6350

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WhatsApp Messenger for Android
Mobile applications / Apps for mobile phones

Vendor: WhatsApp

Description

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

An out-of-bounds read was possible in WhatsApp due to incorrect parsing of RTP extension headers. This issue affects WhatsApp for Android prior to 2.18.276, WhatsApp Business for Android prior to 2.18.99, WhatsApp for iOS prior to 2.18.100.6, WhatsApp Business for iOS prior to 2.18.100.2, and WhatsApp for Windows Phone prior to 2.18.224.

Mitigation
Install update from vendor's website.

Vulnerable software versions

WhatsApp Messenger for Android: 2.18.1 - 2.18.222

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External links
http://www.securityfocus.com/bid/108803
http://www.facebook.com/security/advisories/cve-2018-6350/

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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.