CRITICAL 9.8 Microsoft
CVE-2021-20231
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.
Microsoft Security Update 2021-Mar: 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.
Affected Products
- cbl2 gnutls 3.6.14-5 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-20231
- https://nvd.nist.gov/vuln/detail/CVE-2021-20231
This critical severity vulnerability with a CVSS score of 9.8 was published on 2021-03-09 via Microsoft. Affected: cbl2 gnutls 3.6.14-5 on CBL Mariner 2.0.
Risk Timeline
CVE Disclosed2021-03-09 · 1989 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2021-20231NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2021-20231Related Vulnerabilities
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|---|---|---|---|
| CVE-2025-62878 | Local Path Provisioner vulnerable to Path Traversal via parameters.pathPattern | CRITICAL | 9.9 |
| CVE-2021-20232 | A flaw was found in gnutls. A use after free issue in client_send_params in lib/ | CRITICAL | 9.8 |
| CVE-2023-20032 | On Feb 15 2023 the following vulnerability in the ClamAV scanning library was di | CRITICAL | 9.8 |
| CVE-2022-48337 | GNU Emacs through 28.2 allows attackers to execute commands via shell metacharac | CRITICAL | 9.8 |
| CVE-2025-0665 | eventfd double close | CRITICAL | 9.8 |
| CVE-2025-68615 | Net-SNMP snmptrapd crash | CRITICAL | 9.8 |
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