#VU103969 Buffer overflow in LibTIFF - CVE-2016-5319

Vulnerability identifier: #VU103969

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-5319

CWE-ID: CWE-119

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 attacker to perform a denial of service attack.

The vulnerability exists in tif_packbits.c. A remote attacker can create a specially crafted bmp file, trick the victim into opening it, trigger memory corruption and perform a denial of service attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..

Vulnerable software versions

LibTIFF: 3.4 - 4.0.6

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External links
https://www.openwall.com/lists/oss-security/2016/04/27/6
https://www.openwall.com/lists/oss-security/2016/06/07/1
https://www.securityfocus.com/bid/88604
https://security.gentoo.org/glsa/201701-16

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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.