#VU61503 Out-of-bounds write in ImageMagick - CVE-2020-25664

Vulnerability identifier: #VU61503

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-25664

CWE-ID: CWE-787

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 compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the WriteOnePNGImage() function of the PNG coder at coders/png.c. A remote attacker can create a specially crafted PNG file, pass it to the affected application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ImageMagick: before 6.9.10-68, 7.0.8-68, 6.9.10-68, 6.9.10-68

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=1891605
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z3J6D7POCQYQKNVRDYLTTPM5SQC3WVTR/

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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.