Rapid7 Vulnerability & Exploit Database

Oracle Linux: (CVE-2020-24659) ELSA-2020-5483: gnutls security and bug fix update

Back to Search

Oracle Linux: (CVE-2020-24659) ELSA-2020-5483: gnutls security and bug fix update

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
09/04/2020
Created
12/30/2020
Added
12/22/2020
Modified
12/22/2020

Description

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.

Solution(s)

  • oracle-linux-upgrade-gnutls
  • oracle-linux-upgrade-gnutls-c
  • oracle-linux-upgrade-gnutls-dane
  • oracle-linux-upgrade-gnutls-devel
  • oracle-linux-upgrade-gnutls-utils

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;