Input validation error in ImageMagick - CVE-2017-14174
Published: September 7, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU38356
CSH Severity: Medium
CVSS v4.0: 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:Green
CVE-ID: CVE-2017-14174
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ImageMagick.org
Affected software:
ImageMagick
ImageMagick
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In coders/psd.c in ImageMagick 7.0.7-0 Q16, a DoS in ReadPSDLayersInternal() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted PSD file, which claims a large "length" field in the header but does not contain sufficient backing data, is provided, the loop over "length" would consume huge CPU resources, since there is no EOF check inside the loop.
How to mitigate CVE-2017-14174
Install update from vendor's website.
Sources
- https://github.com/ImageMagick/ImageMagick/commit/04a567494786d5bb50894fc8bb8fea0cf496bea8
- https://github.com/ImageMagick/ImageMagick/commit/f68a98a9d385838a1c73ec960a14102949940a64
- https://github.com/ImageMagick/ImageMagick/issues/714
- https://lists.debian.org/debian-lts-announce/2019/05/msg00015.html
- https://security.gentoo.org/glsa/201711-07
- https://usn.ubuntu.com/3681-1/