Key Vulnerability Information Vulnerability Details CVE Number: CVE-2023-40163 Summary: - An out-of-bounds write vulnerability exists in the functionality of Accusoft ImageGear 20.1. A specially crafted malformed file can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability. Affected Versions Confirmed Vulnerable Versions: - Accusoft ImageGear 20.1 Severity CVSSv3 Score: 9.8 - CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Vulnerability Type CWE: - CWE-787 - Out-of-bounds Write Technical Details Description: - The vulnerability is in the function, due to a buffer overflow caused by a missing buffer size check. A specially crafted JPG file can lead to an out-of-bounds write, which can result in memory corruption. Code Snippet: - The heap block metadata inspection and allocation chain parsing show that the allocation was made at at 730e967a. Timeline 2023-08-28: Vendor Disclosure 2023-09-20: Vendor Patch Release 2023-09-25: Public Release Credit Discovery: Discovered by Emmanuel Tacheau of Cisco Talos. Vendor Response Release notes from the vendor can be found at: - Windows: https://help.accusoft.com/ImageGear/v20.3/Windows/DLL/webframe.html#release_notes.html - Linux: https://help.accusoft.com/ImageGear/v20.3/Linux/webframe.html#release-notes.html