Remote code execution in Adobe Illustrator

Published: 2021-02-09

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE ID	CVE-2021-21053 CVE-2021-21054
CWE ID	CWE-787
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Adobe Illustrator CC Client/Desktop applications / Office applications
Vendor	Adobe

Security Advisory

1) Out-of-bounds write

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-21053

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 Illustrator files. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Illustrator CC: 23.1, 24.0, 24.0.2, 24.1.2, 24.2, 25.0, 25.1

CPE

External links

https://helpx.adobe.com/security/products/illustrator/apsb21-12.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open an attachment in an e-mail message.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds write