VDB
CVE-2020-24659
CVE-2020-24659
PUBLISHED
CVSS 7.5 HIGH
An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.
EPSS 3.73% · 89.4th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
3.73%
89.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | gnutls28 | 0, 3.6.9-5ubuntu1, 3.6.9-5ubuntu2 |
Timeline
- Sep 4, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Mar 1, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 3, 2022 EPSS Score
- Jul 4, 2022 EPSS Score
- Nov 8, 2022 EPSS Score
- Jan 10, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-24659 third-party-advisory
- https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04 third-party-advisory
- https://security.gentoo.org/glsa/202009-01 third-party-advisory
- https://ubuntu.com/security/notices/USN-4491-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-24659 third-party-advisory