Input validation error in tiff (Alpine package)

1) Input validation error

EUVDB-ID: #VU33769

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-16232

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

** DISPUTED ** LibTIFF 4.0.8 has multiple memory leak vulnerabilities, which allow attackers to cause a denial of service (memory consumption), as demonstrated by tif_open.c, tif_lzw.c, and tif_aux.c. NOTE: Third parties were unable to reproduce the issue.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tiff (Alpine package): 4.0.8-r0 - 4.0.8-r1

CPE2.3

• cpe:2.3:o:alpine:tiff_alpine_package:4.0.8-r1:*:*:*:*:alpine_linux:*:
• cpe:2.3:o:alpine:tiff_alpine_package:4.0.8-r0:*:*:*:*:alpine_linux:*:

External links

http://git.alpinelinux.org/aports/commit/?id=3bb6858aff988546af833aadbf73ab5abafc394f
http://git.alpinelinux.org/aports/commit/?id=17f5b0b8cb4daab681a3b9c2aca7d363aaa53641
http://git.alpinelinux.org/aports/commit/?id=6db06001eab088ffd4b195b0b537d2b4634b49f8
http://git.alpinelinux.org/aports/commit/?id=713292e9b39017387f68cc813361e3da8a1d378b
http://git.alpinelinux.org/aports/commit/?id=e9c43273f1af86175e73a28b12085cc76e1a7ea6

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.