{"id":"ALPINE-CVE-2020-13777","details":"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.","modified":"2026-09-11T10:17:51.373665482Z","published":"2020-06-04T07:15:10Z","upstream":["CVE-2020-13777"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2020-13777"}],"affected":[{"package":{"name":"gnutls","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"fixed":"3.6.14-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-13777.json"}},{"package":{"name":"gnutls","ecosystem":"Alpine:v3.8","purl":"pkg:apk/alpine/gnutls?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0"},{"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