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Red Hat OpenShift: CVE-2020-13777: gnutls: session resumption works without master key allowing MITM

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Red Hat OpenShift: CVE-2020-13777: gnutls: session resumption works without master key allowing MITM

Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
06/04/2020
Created
12/30/2020
Added
12/29/2020
Modified
12/29/2020

Description

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application.

Solution(s)

  • linuxrpm-upgrade-redhat-coreos

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