#VU58972 Memory leak in Adobe Photoshop - CVE-2021-43020

Vulnerability identifier: #VU58972

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-43020

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Adobe Photoshop
Client/Desktop applications / Multimedia software

Vendor: Adobe

Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when parsing specially crafted TIFF files. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Photoshop: 22.1.0 - 22.5.3, 23.0 - 23.0.2

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External links
https://helpx.adobe.com/security/products/photoshop/apsb21-113.html
https://fortiguard.com/zeroday/FG-VD-21-100

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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.