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.
Advisories
Source ID Title
Debian DSA Debian DSA DSA-4697-1 gnutls28 security update
EUVD EUVD EUVD-2020-5994 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.
Ubuntu USN Ubuntu USN USN-4384-1 GnuTLS vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T12:25:16.491Z

Reserved: 2020-06-03T00:00:00

Link: CVE-2020-13777

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-06-04T07:15:10.000

Modified: 2024-11-21T05:01:50.330

Link: CVE-2020-13777

cve-icon Redhat

Severity : Important

Publid Date: 2020-06-03T00:00:00Z

Links: CVE-2020-13777 - Bugzilla

cve-icon OpenCVE Enrichment

No data.