#VU32178 Buffer overflow in LibTIFF - CVE-2016-5321

Vulnerability identifier: #VU32178

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-2016-5321

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 non-authenticated attacker to perform a denial of service (DoS) attack.

The DumpModeDecode function in libtiff 4.0.6 and earlier allows attackers to cause a denial of service (invalid read and crash) via a crafted tiff image.

Mitigation
Install update from vendor's website.

Vulnerable software versions

LibTIFF: 1:6.0p1-4+deb7u4

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External links
https://lists.opensuse.org/opensuse-security-announce/2016-12/msg00017.html
https://www.debian.org/security/2017/dsa-3762
https://www.securityfocus.com/bid/91209
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.