CVE-2021-32944 Information

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02 https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdf https://www.zerodayinitiative.com/advisories/ZDI-21-990/ https://www.zerodayinitiative.com/advisories/ZDI-21-987/ https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8