#VU53952 Out-of-bounds read in Animate - CVE-2021-28621

Vulnerability identifier: #VU53952

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-28621

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Animate
Client/Desktop applications / Multimedia software

Vendor: Adobe

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition. A remote attacker can create a specially crafted FLA file, trick the victim into opening it, trigger out-of-bounds read error and compromise the affected system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Animate: 20.0 - 21.0.6

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External links
https://helpx.adobe.com/security/products/animate/apsb21-50.html
https://www.zerodayinitiative.com/advisories/ZDI-21-664/

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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.