Debian update for php-imagick

1) Out-of-bounds write

EUVDB-ID: #VU23005

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-11037

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the ImagickKernel::fromMatrix() function in PHP imagick extension. A remote attacker can create a specially crafted file, pass it to the application, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected package to version: 3.4.3~rc2-2+deb9u1.

Vulnerable software versions

php-imagick (Debian package): 3.4.0~rc2-1 - 3.4.3-4.1

CPE2.3

• cpe:2.3:a:debian:php-imagick_debian_package:3.4.0~rc2-1:*:*:*:*:debian_linux:*:*
• cpe:2.3:a:debian:php-imagick_debian_package:3.4.0~rc4-1:*:*:*:*:debian_linux:*:*
• cpe:2.3:a:debian:php-imagick_debian_package:3.4.0~rc4-2:*:*:*:*:debian_linux:*:*

External links

https://www.debian.org/security/2019/dsa-4576

Q & A

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.