Vulnerability identifier: #VU1067

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-2016-8331

CWE-ID: CWE-843

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibTIFF
Universal components / Libraries / Libraries used by multiple products

Vendor: LibTIFF

Description
The vulnerability allows a remote unauthenticated user to execute arbitrary code execution om the target system.
The weakness exists due to improper handling of compressed, TIFF images. By convincing the victim to open a file with specially crafted TIFF images, attackers can trigger a type confusion condition and execute arbitrary code.
Successful exploitation of the vulnerability results in arbitrary code execution.

Mitigation
Securitylab is temporaly unaware of the patches resolving the vulnerability.

Vulnerable software versions

LibTIFF: 4.0.6

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External links
http://www.talosintelligence.com/reports/TALOS-2016-0190/

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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.