#VU39381 Out-of-bounds read in LibTIFF - CVE-2016-10271

Vulnerability identifier: #VU39381

Vulnerability risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-10271

CWE-ID: CWE-125

Exploitation vector: Local

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 (DoS) attack.

The vulnerability exists due to a boundary error in tools/tiffcrop.c in LibTIFF 4.0.7. A remote attacker can perform a denial of service (heap-based buffer over-read and buffer overflow) or possibly have unspecified other impact via a crafted TIFF image, related to "READ of size 1" and libtiff/tif_fax3.c:413:13.

Mitigation
Install update from vendor's website.

Vulnerable software versions

LibTIFF: 4.0.7

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External links
https://www.securityfocus.com/bid/97199
https://blogs.gentoo.org/ago/2017/01/01/libtiff-multiple-heap-based-buffer-overflow/
https://github.com/vadz/libtiff/commit/9657bbe3cdce4aaa90e07d50c1c70ae52da0ba6a

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.