VDB
CVE-2021-20231
CVE-2021-20231
PUBLISHED
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.
EPSS 1.20% · 79.2th percentile
Risk Scores
EPSS Score
1.20%
79.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | gnutls28 | 0, 3.6.9-5ubuntu1, 3.6.9-5ubuntu2 |
Exploit Intelligence
- https://www.gnutls.org/security-new.html#GNUTLS-SA-2021-03-10 (nist-nvd)
- CVE-2025-38062.yara (github-yara)
- CVE-2025-38062.yara (github-yara)
- CVE-2025-38062.yara (github-yara)
- CVE-2025-38062.yara (github-yara)
- CVE-2025-38062.yara (github-yara)
- CVE-2025-38062.yara (github-yara)
- glcve_test.go (github-poc)
- glcve_test.go (github-poc)
- glcve_test.go (github-poc)
…and 3 more exploits
Timeline
- CVE Published
- Apr 14, 2021 EPSS Score
- Apr 27, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-20231 third-party-advisory
- https://www.gnutls.org/security-new.html#GNUTLS-SA-2021-03-10 third-party-advisory
- https://ubuntu.com/security/notices/USN-5029-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-20231 third-party-advisory