CVE-2021-31893

State: Published
Severity: Not scored
Published: Jul 13, 2021
Updated: Aug 3, 2024
Reserved: Apr 29, 2021

Description

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.

Scores

The record has no CVSS score.

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
SIMATIC PCS 7 V8.2 and earlierSiemens	All versionsAffected
SIMATIC PCS 7 V9.0Siemens	All versions < V9.0 SP3Affected
SIMATIC PDMSiemens	All versions < V9.2Affected
SIMATIC STEP 7 V5.XSiemens	All versions < V5.6 SP2 HF3Affected
SINAMICS STARTER (containing STEP 7 OEM version)Siemens	All versions < V5.4 HF2Affected

References

https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf

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