Vulnerability identifier: #VU60848

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-2021-21946

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ImageGear
Web applications / Modules and components for CMS

Vendor: Accusoft Corporation

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the JPEG-JFIF lossless Huffman image parser functionality within precision lower than 9. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ImageGear: 19.10

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1375

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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.