High · published June 4, 2020
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.
| Product | Versions | Fixed in |
|---|---|---|
| gnu/gnutls | ≥ 3.6.0, < 3.6.14 | 3.6.14 |
| fedoraproject/fedora | all versions | — |
| fedoraproject/fedora | all versions | — |
| canonical/ubuntu_linux | all versions | — |
| canonical/ubuntu_linux | all versions | — |
| debian/debian_linux | all versions | — |