Input validation error in imagemagick6 (Alpine package)

1) Input validation error

EUVDB-ID: #VU15352

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-16644

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient check for length in ReadDCMImage() function in coders/dcm.c and in ReadPICTImage() function in coders/pict.c. A remote attacker can pass a specially crafted image to the affected application and trigger application crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

imagemagick6 (Alpine package): 6.9.9.51-r0

CPE2.3

• cpe:2.3:a:alpine:imagemagick6_alpine_package:6.9.9.51-r0:*:*:*:*:alpine_linux:*:3.6

External links

https://git.alpinelinux.org/aports/commit/?id=7265f5c68465fbf270b08e5b5afab0c89bebdcff
https://git.alpinelinux.org/aports/commit/?id=9aa6f1864ecdab720ef92348b15660fd036b12b0
https://git.alpinelinux.org/aports/commit/?id=49f02237bafd3d3005a5791741d775c1380eddf4
https://git.alpinelinux.org/aports/commit/?id=d4d73543a48ca18ae905200443cacdf97da41f6e

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.