SB2017090730 - Input validation error in ImageMagick
Published: September 7, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017090730
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2017-14174)
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.
Remediation
Install update from vendor's website.
References
- 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/