CVE-2021-32944: opendesign drawings_sdk Use After Free

Vulnerability summary

CVE-2021-32944 is a high (CVSS 7.8) Use After Free vulnerability in opendesign drawings_sdk. EPSS estimates a 2.67% chance of exploitation in the next 30 days, higher than 85.5% of scored vulnerabilities.

Timeline

1. 17-06-2021
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

A use-after-free issue exists in the DGN file-reading procedure in the Drawings SDK (All versions prior to 2022.4) resulting from the lack of proper validation of user-supplied data. This can result in a memory corruption or arbitrary code execution, allowing attackers to cause a denial-of-service condition or execute code in the context of the current process.

• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.