Vulnerability identifier: #VU21062
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-125
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
ImageMagick
Client/Desktop applications /
Multimedia software
Vendor: ImageMagick.org
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in "WriteTIFFImage" within coders/tiff.c" file. A remote attacker can create a specially crafted TIFF image file, related to TIFFRewriteDirectory, TIFFWriteDirectory, TIFFWriteDirectorySec, and TIFFWriteDirectoryTagColormap in "tif_dirwrite.c" of LibTIFF, trick the victim into opening it, trigger out-of-bounds read error and crash the application.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
ImageMagick: 7.0.8-43 Q16
External links
http://github.com/ImageMagick/ImageMagick/issues/1560
http://github.com/ImageMagick/ImageMagick6/commit/3c53413eb544cc567309b4c86485eae43e956112
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.