-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-14:18.openssl Security Advisory The FreeBSD Project Topic: OpenSSL multiple vulnerabilities Category: contrib Module: openssl Announced: 2014-09-09 Affects: All supported versions of FreeBSD. Corrected: 2014-08-07 21:04:42 UTC (stable/10, 10.0-STABLE) 2014-09-09 10:09:46 UTC (releng/10.0, 10.0-RELEASE-p8) 2014-08-07 21:06:34 UTC (stable/9, 9.3-STABLE) 2014-09-09 10:13:46 UTC (releng/9.3, 9.3-RELEASE-p1) 2014-09-09 10:13:46 UTC (releng/9.2, 9.2-RELEASE-p11) 2014-09-09 10:13:46 UTC (releng/9.1, 9.1-RELEASE-p18) 2014-08-07 21:06:34 UTC (stable/8, 8.4-STABLE) 2014-09-09 10:13:46 UTC (releng/8.4, 8.4-RELEASE-p15) CVE Name: CVE-2014-3506, CVE-2014-3507, CVE-2014-3508, CVE-2014-3510, CVE-2014-3509, CVE-2014-3511, CVE-2014-3512, CVE-2014-5139 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 receipt of a specifically crafted DTLS handshake message may cause OpenSSL to consume large amounts of memory. [CVE-2014-3506] The receipt of a specifically crafted DTLS packet could cause OpenSSL to leak memory. [CVE-2014-3507] A flaw in OBJ_obj2txt may cause pretty printing functions such as X509_name_oneline, X509_name_print_ex et al. to leak some information from the stack. [CVE-2014-3508] OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject to a denial of service attack. [CVE-2014-3510] The following problems affect FreeBSD 10.0-RELEASE and later: If a multithreaded client connects to a malicious server using a resumed session and the server sends an ec point format extension it could write up to 255 bytes to freed memory. [CVE-2014-3509] A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate TLS 1.0 instead of higher protocol versions when the ClientHello message is badly fragmented. [CVE-2014-3511] A malicious client or server can send invalid SRP parameters and overrun an internal buffer. [CVE-2014-3512] A malicious server can crash the client with a NULL pointer dereference by specifying a SRP ciphersuite even though it was not properly negotiated with the client. [CVE-2014-5139] III. Impact A remote attacker may be able to cause a denial of service (application crash, large memory consumption), obtain additional information, cause protocol downgrade. Additionally, a remote attacker may be able to run arbitrary code on a vulnerable system if the application has been set up for SRP. 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. 2) 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 10.0] # fetch http://security.FreeBSD.org/patches/SA-14:18/openssl-10.0.patch # fetch http://security.FreeBSD.org/patches/SA-14:18/openssl-10.0.patch.asc # gpg --verify openssl-10.0.patch.asc [FreeBSD 9.3] # fetch http://security.FreeBSD.org/patches/SA-14:18/openssl-9.3.patch # fetch http://security.FreeBSD.org/patches/SA-14:18/openssl-9.3.patch.asc # gpg --verify openssl-9.3.patch.asc [FreeBSD 9.2, 9.1, 8.4] # fetch http://security.FreeBSD.org/patches/SA-14:18/openssl-9.patch # fetch http://security.FreeBSD.org/patches/SA-14:18/openssl-9.patch.asc # gpg --verify openssl-9.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. 3) 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 VI. Correction details The following list contains the correction revision numbers for each affected branch. Branch/path Revision - ------------------------------------------------------------------------- stable/8/ r269687 releng/8.4/ r271305 stable/9/ r269687 releng/9.1/ r271305 releng/9.2/ r271305 releng/9.3/ r271305 stable/10/ r269686 releng/10.0/ r271304 - ------------------------------------------------------------------------- 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----- iQIcBAEBCgAGBQJUDtUBAAoJEO1n7NZdz2rnOUoP/jNoEEPVt1RoVPQoOQc6vno5 2HXcCDsu0ql3kCNIIZ7E6TddfduzV04EMzBrIgulg7eXft+Lnx6HlEgJOo7QLImc aWLWxjcbyby6wrbYOc+FLK11yx9/uZJF0VCdSeyzhy0EFD3tOZPsDMXKZmG7FRkg 6A7ENJU25Mx8V1myzHw/VfDwAHCtXHliFVVE0CUku55pYnlhMeetu/wuB6KYbmgV 1WUamiHEGl4Dh4Up7nGHYYm32kqZLaE+cf1Ovc2VGT98ZyXmCgDB4+8kkA/HZxxp DRgQlojeQhahee5MmzD+wMJXlq6dekoo+JVf22+Nb+oNmlKT6/UxtUhCwW11MLUV rnOMr3u1JCNvBc+3KroSmtFeEtqh7jx3Ag4w8lS5mJO+wX1/lilbsFxSS/9G65fy LqHUQSxkuDJ1bNzPfKreBPyUmQlG5t/3DonIDCF9r3sefDN+kxqe1+RwjdNRM0ov V7OH/AW1NBQtV/F/h0tKCcskvcJo9Q+inAohheLPnWkFj7F2tLNt5TAxsGy7WvFZ MuQSAXpZkdh7OkhAhBM3Xk+EOv7Qk7zZL5HJ1Lpm6kfJ8wSb4etoUV7oELaDMBz8 +9r+Vr9GtjSsec2a4tjNIixZKV9bzEhgKP5gsWD/JewhAzF+0bYNa9snOWxzpAYb j+eW9IT7pEAJK9DtIsDd =f4To -----END PGP SIGNATURE-----