VDB
CVE-2020-11501
CVE-2020-11501
REJECTED
GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.
EPSS 11.49% · 93.8th percentile
Risk Scores
EPSS Score
11.49%
93.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | gnutls28 | 0, 3.3.18-1ubuntu1, 3.3.20-1ubuntu1 |
| Ubuntu:18.04:LTS | gnutls28 | 3.5.17-1ubuntu1, 3.5.17-1ubuntu3, 3.5.18-1ubuntu1 |
Exploit Intelligence
- 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)
- glcve_test.go (github-poc)
…and 2 more exploits
Timeline
- Apr 3, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-11501 third-party-advisory
- https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31 third-party-advisory
- https://gitlab.com/gnutls/gnutls/-/commit/5b595e8e52653f6c5726a4cdd8fddeb6e83804d2 third-party-advisory
- https://ubuntu.com/security/notices/USN-4322-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-11501 third-party-advisory