vulnerability
Red Hat OpenShift: CVE-2020-13777: gnutls: session resumption works without master key allowing MITM
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | 2020-06-04 | 2020-12-29 | 2025-04-11 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
2020-06-04
Added
2020-12-29
Modified
2025-04-11
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
linuxrpm-upgrade-redhat-coreos
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