From owner-freebsd-announce@freebsd.org Sat Dec 5 10:16:48 2015 Return-Path: Delivered-To: freebsd-announce@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 75022A4270A for ; Sat, 5 Dec 2015 10:16:48 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id 694FE18A7; Sat, 5 Dec 2015 10:16:48 +0000 (UTC) (envelope-from security-advisories@freebsd.org) Received: by freefall.freebsd.org (Postfix, from userid 1035) id 69A881C7C; Sat, 5 Dec 2015 10:16:48 +0000 (UTC) From: FreeBSD Security Advisories To: FreeBSD Security Advisories Reply-To: freebsd-security@freebsd.org Precedence: bulk Message-Id: <20151205101648.69A881C7C@freefall.freebsd.org> Date: Sat, 5 Dec 2015 10:16:48 +0000 (UTC) Subject: [FreeBSD-Announce] FreeBSD Security Advisory FreeBSD-SA-15:26.openssl X-BeenThere: freebsd-announce@freebsd.org X-Mailman-Version: 2.1.20 List-Id: "Project Announcements \[moderated\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Dec 2015 10:16:48 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-15:26.openssl Security Advisory The FreeBSD Project Topic: Multiple OpenSSL vulnerabilities Category: contrib Module: openssl Announced: 2015-12-05 Affects: All supported versions of FreeBSD. Corrected: 2015-12-03 21:18:48 UTC (stable/10, 10.2-STABLE) 2015-12-05 09:53:58 UTC (releng/10.2, 10.2-RELEASE-p8) 2015-12-05 09:53:58 UTC (releng/10.1, 10.1-RELEASE-p25) 2015-12-03 21:24:40 UTC (stable/9, 9.3-STABLE) 2015-12-05 09:53:58 UTC (releng/9.3, 9.3-RELEASE-p31) CVE Name: CVE-2015-3194, CVE-2015-3195, CVE-2015-3196 For general information regarding FreeBSD Security Advisories, including descriptions of the fields above, security branches, and the following sections, please visit . I. Background FreeBSD includes software from the OpenSSL Project. The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. II. Problem Description The signature verification routines will crash with a NULL pointer dereference if presented with an ASN.1 signature using the RSA PSS algorithm and absent mask generation function parameter. [CVE-2015-3194] When presented with a malformed X509_ATTRIBUTE structure, OpenSSL will leak memory. [CVE-2015-3195] If PSK identity hints are received by a multi-threaded client then the values are incorrectly updated in the parent SSL_CTX structure. [CVE-2015-3196] III. Impact A remote attacker who can present a specifically crafted certificate may cause a OpenSSL client or server application that performs certificate signature verification to crash with a NULL pointer dereference, resulting in a Denial of Service. [CVE-2015-3194] This affects FreeBSD 10.x only. An attacker who is able to feed specifically crafted PKCS#7/CMS data to an OpenSSL application can cause memory leak which may eventually result in a Denial of Service. [CVE-2015-3195] A remote attacker who can send PSK identity hints to a multi-thread client may trigger a double fault of hint data, which may lead to crash the client application. [CVE-2015-3196]. This affects FreeBSD 10.1 only. IV. Workaround No workaround is available. V. Solution Perform one of the following: 1) Upgrade your vulnerable system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date. Reboot is optional but recommended. 2) To update your vulnerable system via a binary patch: Systems running a RELEASE version of FreeBSD on the i386 or amd64 platforms can be updated via the freebsd-update(8) utility: # freebsd-update fetch # freebsd-update install Reboot is optional but recommended. 3) To update your vulnerable system via a source code patch: The following patches have been verified to apply to the applicable FreeBSD release branches. a) Download the relevant patch from the location below, and verify the detached PGP signature using your PGP utility. [FreeBSD 9.3] # fetch https://security.FreeBSD.org/patches/SA-15:26/openssl-9.3.patch # fetch https://security.FreeBSD.org/patches/SA-15:26/openssl-9.3.patch.asc # gpg --verify openssl-9.3.patch.asc [FreeBSD 10.1] # fetch https://security.FreeBSD.org/patches/SA-15:26/openssl-10.1.patch # fetch https://security.FreeBSD.org/patches/SA-15:26/openssl-10.1.patch.asc # gpg --verify openssl-10.1.patch.asc [FreeBSD 10.2] # fetch https://security.FreeBSD.org/patches/SA-15:26/openssl-10.2.patch # fetch https://security.FreeBSD.org/patches/SA-15:26/openssl-10.2.patch.asc # gpg --verify openssl-10.2.patch.asc b) Apply the patch. Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile the operating system using buildworld and installworld as described in . Restart all deamons using the library, or reboot the system. VI. Correction details The following list contains the correction revision numbers for each affected branch. Branch/path Revision - ------------------------------------------------------------------------- stable/9/ r291722 releng/9.3/ r291854 stable/10/ r291721 releng/10.1/ r291854 releng/10.2/ r291854 - ------------------------------------------------------------------------- To see which files were modified by a particular revision, run the following command, replacing NNNNNN with the revision number, on a machine with Subversion installed: # svn diff -cNNNNNN --summarize svn://svn.freebsd.org/base Or visit the following URL, replacing NNNNNN with the revision number: VII. References The latest revision of this advisory is available at -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.1.8 (FreeBSD) iQIcBAEBCgAGBQJWYrWXAAoJEO1n7NZdz2rnLS8QAJvvKkFk/l4lvh34dmy9rGU5 pEoeR47Mw9KGirjARBwuOerqykBO+2vUPAnOFUMcQTuG4V23s9u2v9T8dO70feu8 o6eTtYrOyliECEywoGmuKmTVjtpGnXTg5BeAuG6i/C2XphEB+6Qq7eCz64n8TZQN NB9emfqE6p0/ndxf3oyrcgw6gLgawmfBH4cWGa07Vd9X2XVc6sPjODDoXmXS8uj3 xtPNFy7L48YfMAhd6l55hO9qxqTY5Pq8EkvZVWPlCYSET+4FBwIIU6Nwpzgpr8bd viTHhwk/pf5wk1rMZzQVbrriQ7vAW4TG6oVsbTHLLC/prNzmTvW2KPqXyWWscRHS 2HWQ1at/b0brA+0rnzEVMQk/nH2031AuXy8o1gizNJoLItuS9Lp7P6xOPaogqss5 J1wmaEkWRSItCGlCIJAxiw1dqbk5tH8Isy1Axno7doTKloeLFanhdPoJP5BexLuo Vbl7A92xQVJLJKLoklVy3QaiKmcbJ/tdgSeI7e3gP8MDkblvSd6UIvHQfUigrA5B JXYQWQgsHpc3tIGaDsbnrkV27O0yUXNipnj8PAEgaknXX5n6Zpyz9Z9Vitfnj1tC 1LAGo/kW8+L1hAX3W5XgsIOe9jWxae19uTGOoaM8tnVtH5bQpjjdWFE2zunzzfJe bCPjBJfZw5z5rvQAkBuY =p0x+ -----END PGP SIGNATURE-----