PT-2021-19994 · Unknown · Drawings Sdk

Mat Powell · Published 2021-06-17 · Updated 2023-02-09 · CVE-2021-32950

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 Drawings SDK versions prior to 2022.4

Description An out-of-bounds read issue exists within the parsing of DXF files in the Drawings SDK, resulting from the lack of proper validation of user-supplied data. This can result in a read past the end of an allocated buffer and allows attackers to cause a denial-of-service condition or read sensitive information from memory locations.

Recommendations For versions prior to 2022.4, update to version 2022.4 or later to resolve the issue. As a temporary workaround, consider restricting the parsing of DXF files until a patch is available. Avoid using the Drawings SDK to parse untrusted DXF files until the issue is resolved.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-32950

ZDI-21-988

ZDI-23-136

Affected Products

Drawings Sdk

References · 11

• https://zerodayinitiative.com/advisories/ZDI-21-988 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-23-136 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-32950 · 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://osv.dev/vulnerability/CVE-2021-32950 · Vendor Advisory
• https://t.me/cibsecurity/25517 · Telegram Post
• https://t.me/cvenotify/16516 · Telegram Post
• https://t.me/cvenotify/19643 · Telegram Post
• https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02 · Note
• https://t.me/cvenotify/18981 · Telegram Post