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Gentoo Linux GLSA-202004-06 Normal: GnuTLS DTLS Protocol Regression

A regression in GnuTLS breaks the security guarantees of the DTLS protocol.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202004-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: GnuTLS: DTLS protocol regression Date: April 02, 2020 Bugs: #715602 ID: 202004-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= A regression in GnuTLS breaks the security guarantees of the DTLS protocol. Background ========= GnuTLS is an Open Source implementation of the TLS and SSL protocols. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-libs/gnutls < 3.6.13 > = 3.6.13 Description ========== It was discovered that DTLS client did not contribute any randomness to the DTLS negotiation. Impact ===== Please review the referenced advisory for details. Workaround ========= There is no known workaround at this time. Resolution ========= All GnuTLS users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =net-libs/gnutls-3.6.13" References ========= [ 1 ] GNUTLS-SA-2020-03-31 https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202004-06 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressedto This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org. License ====== Copyright 2020 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5/ . OpenSSL exhibits a flaw impacting TLS protocol safety. Update is advised to safeguard against vulnerabilities.. GnuTLS, DTLS, Gentoo Security Advisory, Security Update. . LinuxSecurity.com Team

Apr 02, 2020 Gentoo