ImageMagick 6.x < 6.9.7-9 / 7.x < 7.0.4-10 webp.c ReadWEBPImage() File Descriptor Exhaustion DoS

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

An application installed on the remote Windows host is affected by a
denial of service vulnerability.

Description :

The version of ImageMagick installed on the remote Windows host is 6.x
prior to 6.9.7-9 or 7.x prior to 7.0.4-10. It is, therefore, affected
by a denial of service vulnerability in the ReadWEBPImage() function
in coders/webp.c due to improper handling of WEBP files. An
unauthenticated, remote attacker can exploit this, by convincing a
user to open a specially crafted WEBP file, to exhaust available file
descriptors and cause a denial of service condition.

See also :

https://github.com/ImageMagick/ImageMagick/pull/382

Solution :

Upgrade to ImageMagick version 6.9.7-9 / 7.0.4-10 or later. Note that
you may also need to manually uninstall the vulnerable version from
the system.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.2
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Windows

Nessus Plugin ID: 97890 ()

Bugtraq ID: 96763

CVE ID: CVE-2017-6502

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