From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 09AAD158094 for ; Wed, 10 Aug 2022 04:43:19 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 4FDB0E0B61; Wed, 10 Aug 2022 04:36:09 +0000 (UTC) Received: from smtp.gentoo.org (woodpecker.gentoo.org [140.211.166.183]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id DCAF4E0871 for ; Wed, 10 Aug 2022 04:08:04 +0000 (UTC) Received: from glsamakerdev.dev.gentoo.org (unknown [140.211.166.165]) by smtp.gentoo.org (Postfix) with ESMTP id 3B27A340E6B for ; Wed, 10 Aug 2022 04:08:04 +0000 (UTC) Received: from [172.24.0.3] (unknown [172.24.0.3]) by glsamakerdev.dev.gentoo.org (Postfix) with ESMTP id 29A0DB5035 for ; Wed, 10 Aug 2022 04:08:04 +0000 (-00) Subject: [gentoo-announce] [ GLSA 202208-11 ] Yubico pam-u2f: Local PIN Bypass vulnerability Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-announce@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="pgp-sha512"; boundary="===============5979021923917597478==" From: glsamaker@gentoo.org To: gentoo-announce@lists.gentoo.org Reply-To: security@gentoo.org Date: Wed, 10 Aug 2022 04:08:03 -0000 Message-ID: <166010448416.7.7505748745924175519@fa4d926cc35c> X-Archives-Salt: 9cb37893-251a-4c35-9d3f-63cbe328a614 X-Archives-Hash: 78c2a4a44267a69b63fddb0d63ebf74a --===============5979021923917597478== Content-Type: text/plain; charset="utf-8" - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202208-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Low Title: Yubico pam-u2f: Local PIN Bypass vulnerability Date: August 10, 2022 Bugs: #792270 ID: 202208-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability has been discovered in pam-u2f which could allow a local attacker to bypass PIN entry. Background ========== Yubico pam-u2f is a PAM module for FIDO2 and U2F keys. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-auth/pam_u2f < 1.1.1 >= 1.1.1 Description =========== A logic issue in Yubico pam-u2f could result in the bypass of a PIN entry requirement when authenticating with FIDO2. Impact ====== An attacker with local access to certain applications using pam-u2f for authentication could incorrectly successfully authenticate without entering the authentication PIN. Workaround ========== There is no known workaround at this time. Resolution ========== All Yubico pam-u2f users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-auth/pam_u2f-1.1.1" References ========== [ 1 ] CVE-2021-31924 https://nvd.nist.gov/vuln/detail/CVE-2021-31924 [ 2 ] YSA-2021-03 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202208-11 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 addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2022 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 --===============5979021923917597478== Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEpqTA6ABLMxh/aChGFMQkOaVy+9kFAmLzLyMACgkQFMQkOaVy +9mKaw/+LN6mLqOU4UNWMPETC+A4xIsYy6uu+NAxnvCbWFUfLAtY+b1GN0+PDNlh ND/m6cglhyl6/zdyMzoXC4Bd5XrG61wmu1oFW//4y7fT/XXkWKjMk1qbu+JKQ0sK l3va5boSZ9sKM3oZoxxhOBDSsiLBR1eEFrP2QpHLdPKYxQETj5YRxutZdRod0GsS qXz2fkjMT1hZan9hbhx3GuJmACHMZORV0MnLvkBuVFaIHfelsGFbUGpbfNkBYXrK CLflrbs+vtJepr/VKPECvKJWCvo4RAQ1eOd0F7cPIllTMsmdRIIUGoNnE8KwzYQd UnHBxnT7mp13hDp2deWTWR5uOxjX1K/36qhIC1rF8iOhQ8RC5t7kM5+6m0CWwIbT xVAKczUO629jb+HGPcucigQofMobBySlt/BQKtkif/7cERWZKhFrLorLYSgNTOCV 3RZOwbz2dDcS/R4Z/vV7OFxAVaA1L2aDg/nmPaWMFvm4y/IcskbdAN4bCOf4Q9pG ujW7pimHAGMjENvpEcmu7iX5d1hhdBT828PcpBZ5a7aGEwdk7gEWKaOENFLXcwuc 9MUN0pyGm5zh4ahNgkGKeKavNFHXCc/reWCwKe2RCCi5EY84dliNA7MeUjUEzTNa uo/1wFVfJzjTc8u4HLY3ZBkfRFU2IoH/SDBoymL1gfmxkcYYLkg= =ejnB -----END PGP SIGNATURE----- --===============5979021923917597478==--