PT-2022-9210 · Accusoft · Accusoft Imagegear

Francesco Benvenuto · Published 2022-04-14 · Updated 2023-06-26 · CVE-2021-21947

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Accusoft ImageGear version 19.10

Description Two heap-based buffer overflow issues exist in the JPEG-JFIF lossless Huffman image parser functionality. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger these issues. The heap-based buffer overflow occurs when the SOF3 precision is greater than or equal to 9.

Recommendations For Accusoft ImageGear version 19.10, consider avoiding the use of the JPEG-JFIF lossless Huffman image parser functionality until a patch is available. As a temporary workaround, restrict the processing of files with SOF3 precision greater than or equal to 9 to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Improper Validation of Array Index

Heap Based Buffer Overflow

Weakness Enumeration

CWE-129

CWE-122

Related Identifiers

CVE-2021-21947

Affected Products

Accusoft Imagegear

References · 4

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1375 · Exploit
• https://osv.dev/vulnerability/CVE-2021-21947 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21947 · Security Note
• https://t.me/cibsecurity/40818 · Telegram Post