Vulnerability identifier: #VU28483

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3878

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

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 ImageIO functionality. A remote attacker can create a specially crafted image, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

macOS: 10.15.4 19E266

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External links
http://seclists.org/fulldisclosure/2020/May/49
http://seclists.org/fulldisclosure/2020/May/53
http://seclists.org/fulldisclosure/2020/May/54
http://seclists.org/fulldisclosure/2020/May/55
http://seclists.org/fulldisclosure/2020/May/56
http://seclists.org/fulldisclosure/2020/May/57
http://seclists.org/fulldisclosure/2020/May/59
http://support.apple.com/HT210918
http://support.apple.com/HT210919
http://support.apple.com/HT210920
http://support.apple.com/HT210921
http://support.apple.com/kb/HT211168
http://support.apple.com/kb/HT211170
http://support.apple.com/kb/HT211171
http://support.apple.com/kb/HT211175
http://support.apple.com/kb/HT211178
http://support.apple.com/kb/HT211179
http://support.apple.com/kb/HT211181

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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.