Vulnerability identifier: #VU21565

Vulnerability risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-11932

CWE-ID: CWE-415

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
android-gif-drawable
Client/Desktop applications / Multimedia software

Vendor: Karol Wrótniak

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the DDGifSlurp() function in decoding.c. A remote attacker can create a specially crafted GIF file, pass it to the affected application, trigger a double free error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

android-gif-drawable: 1.2.0 - 1.2.17

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External links
http://awakened1712.github.io/hacking/hacking-whatsapp-gif-rce/

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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. However, proof of concept for this vulnerability is available.