NULL pointer dereference in GraphicsMagick - CVE-2016-7997
Published: January 18, 2017 / Updated: August 3, 2020
Vulnerability identifier: #VU33183
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-7997
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The WPG format reader in GraphicsMagick 1.3.25 and earlier allows remote attackers to cause a denial of service (assertion failure and crash) via vectors related to a ReferenceBlob and a NULL pointer.
Affected software
GraphicsMagick
Amazon Linux AMI
Fedora
graphicsmagick (Alpine package)
GraphicsMagick
Amazon Linux AMI
Fedora
graphicsmagick (Alpine package)
GraphicsMagick
How to mitigate CVE-2016-7997
Install update from vendor's website.
GraphicsMagick - update to 1.3.26
GraphicsMagick - addressed in versions 1.3.25-6.el6, 1.3.25-6.el7, 1.3.25-6.fc24, 1.3.25-6.fc25
GraphicsMagick - addressed in versions 1.3.25-6.el6, 1.3.25-6.el7, 1.3.25-6.fc24, 1.3.25-6.fc25