Stack-based buffer overflow in ImageMagick - CVE-2019-9956

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Main Vulnerability Database Vulnerabilities #VU18391

Stack-based buffer overflow in ImageMagick - CVE-2019-9956

Published: May 3, 2019


Vulnerability identifier: #VU18391
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-9956
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing a crafted image file in the PopHexPixel() function of coders/ps.c. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

ImageMagick
Arch Linux
Amazon Linux AMI
Opensuse
imagemagick6 (Alpine package)
php70-pecl-imagick
php71-pecl-imagick
php72-pecl-imagick
php54-pecl-imagick
php55-pecl-imagick
php56-pecl-imagick
ImageMagick

How to mitigate CVE-2019-9956

Install update from vendor's website.

imagemagick6 (Alpine package) - update to 6.9.10.37-r0
php70-pecl-imagick - update to 3.4.4-1.7
php71-pecl-imagick - update to 3.4.4-2.8
php72-pecl-imagick - update to 3.4.4-2.10
php54-pecl-imagick - update to 3.4.4-2.11
php55-pecl-imagick - update to 3.4.4-2.15
php56-pecl-imagick - update to 3.4.4-2.16
ImageMagick - update to 6.9.10.68-3.22

External References

Related Security Bulletins