PT-2021-19986 · Open Design Alliance · Oda Drawing Sdk

Mat Powell · Published 2021-06-17 · Updated 2023-03-28 · CVE-2021-32940

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Open Design Alliance (ODA) Drawing SDK versions prior to 2022.5

Description The issue is related to an out-of-bounds read in the DWG file-recovering procedure due to the lack of proper validation of user-supplied data. This can cause a read past the end of an allocated buffer, allowing attackers to cause a denial-of-service condition or read sensitive information from memory locations.

Recommendations For versions prior to 2022.5, update to version 2022.5 or later to resolve the issue. As a temporary workaround, consider restricting the use of the DWG file-recovering procedure in the Drawings SDK until a patch is available. Avoid using the Drawings SDK to parse untrusted DWG files until the issue is resolved.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-32940

ZDI-21-986

ZDI-23-120

ZDI-23-134

Affected Products

Oda Drawing Sdk

References · 11

• https://zerodayinitiative.com/advisories/ZDI-23-120 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-986 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-23-134 · Security Note
• https://osv.dev/vulnerability/CVE-2021-32940 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32940 · Security Note
• https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdf · Patch
• https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf · Patch
• https://t.me/cvenotify/18984 · Telegram Post
• https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02 · Note
• https://t.me/cvenotify/19646 · Telegram Post
• https://t.me/cvenotify/16519 · Telegram Post