Integer overflow in ImageMagick - CVE-2017-14173
Published: December 27, 2017
Vulnerability identifier: #VU9801
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-14173
CWE-ID: CWE-190
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 attacker to cause DoS condition on the target system.
The weakness exists due to integer overflow in the function ReadTXTImage() in coders/txt.c that may occur for the addition operation "GetQuantumRange(depth)+1" when "depth" is large, producing a smaller value than expected. A remote attacker can provide a specially crafted TXT file that claims a very large "max_value" value, trigger infinite loop and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists due to integer overflow in the function ReadTXTImage() in coders/txt.c that may occur for the addition operation "GetQuantumRange(depth)+1" when "depth" is large, producing a smaller value than expected. A remote attacker can provide a specially crafted TXT file that claims a very large "max_value" value, trigger infinite loop and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
How to mitigate CVE-2017-14173
Install update from vendor's website.