PT-2021-20456 · Jt981.Dll+2 · Jt981.Dll+2

Mat Powell · Published 2021-07-13 · Updated 2022-10-07 · CVE-2021-34325

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: JT2Go versions prior to V13.2 Teamcenter Visualization versions prior to V13.2

Description: A vulnerability has been identified in the Jt981.dll library, which lacks proper validation of user-supplied data when parsing JT files. This could result in an out of bounds read past the end of an allocated buffer, allowing an attacker to leak information in the context of the current process.

Recommendations: For JT2Go versions prior to V13.2, update to version V13.2 or later to resolve the issue. For Teamcenter Visualization versions prior to V13.2, update to version V13.2 or later to resolve the issue. As a temporary workaround, consider restricting the use of the Jt981.dll library until a patch is available.

Fix

Buffer Over-read

Out of bounds Read

Weakness Enumeration

CWE-126

CWE-125

Related Identifiers

CVE-2021-34325

ZDI-21-863

Affected Products

Jt2Go

Jt981.Dll

Teamcenter Visualization

References · 5

• https://osv.dev/vulnerability/CVE-2021-34325 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-863 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-34325 · Security Note
• https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf · Vendor Advisory
• https://t.me/cibsecurity/26093 · Telegram Post