Heap-based buffer overflow in tiff (Alpine package)

1) Heap-based buffer overflow

EUVDB-ID: #VU32197

Risk: Medium

CVSSv3.1: 6.8 [AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-3991

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the loadImage function in the tiffcrop tool in LibTIFF 4.0.6 and earlier. A remote attacker can use a crafted TIFF image with zero tiles. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

tiff (Alpine package): 4.0.6-r1

CPE2.3

• cpe:2.3:o:alpine:tiff_alpine_package:4.0.6-r1:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=5bfab05c1b1c9659ce7262a83185d62e3648cf8a
http://git.alpinelinux.org/aports/commit/?id=b4f84337cf6bca17493e2185d14e8cc4c34b143d

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.