CVE-2021-20231 (GCVE-0-2021-20231)

Vulnerability from cvelistv5 – Published: 2021-03-12 18:23 – Updated: 2026-10-14 10:04
VLAI
Summary
A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1025 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
n/a gnutls Affected: gnutls 3.7.1
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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}



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