OpenSSL is a toolkit that implements the Secure Sockets Layer and Transport Layer Security protocols, as well as a full-strength, general purpose cryptography library. It was found that OpenSSL clients and servers could be forced, via a specially crafted handshake packet, to use weak keying material for communication. A man-in-the-middle attacker could use this flaw to decrypt and modify traffic between a client and a server. Note: In order to exploit this flaw, both the server and the client must be using a vulnerable version of OpenSSL; the server must be using OpenSSL version 1.0.1 and above, and the client must be using any version of OpenSSL. For more information about this flaw, refer to: https://access.redhat.com/site/articles/904433 A buffer overflow flaw was found in the way OpenSSL handled invalid DTLS packet fragments. A remote attacker could possibly use this flaw to execute arbitrary code on a DTLS client or server. Multiple flaws were found in the way OpenSSL handled read and write buffers when the SSL_MODE_RELEASE_BUFFERS mode was enabled. A TLS/SSL client or server using OpenSSL could crash or unexpectedly drop connections when processing certain SSL traffic. A denial of service flaw was found in the way OpenSSL handled certain DTLS ServerHello requests. A specially crafted DTLS handshake packet could cause a DTLS client using OpenSSL to crash. A NULL pointer dereference flaw was found in the way OpenSSL performed anonymous Elliptic Curve Diffie Hellman key exchange. A specially crafted handshake packet could cause a TLS/SSL client that has the anonymous ECDH cipher suite enabled to crash. Red Hat would like to thank the OpenSSL project for reporting these issues. Upstream acknowledges KIKUCHI Masashi of Lepidum as the original reporter of CVE-2014-0224, Juri Aedla as the original reporter of CVE-2014-0195, Imre Rad of Search-Lab as the original reporter of CVE-2014-0221, and Felix Grobert and Ivan Fratri of Google as the original reporters of CVE-2014-3470. All OpenSSL users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. For the update to take effect, all services linked to the OpenSSL library must be restarted or the system rebooted. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258 5. Bugs fixed : 1087195 - CVE-2010-5298 openssl: freelist misuse causing a possible use-after-free 1093837 - CVE-2014-0198 openssl: SSL_MODE_RELEASE_BUFFERS NULL pointer dereference in do_ssl3_write 1103586 - CVE-2014-0224 openssl: SSL/TLS MITM vulnerability 1103593 - CVE-2014-0221 openssl: DoS when sending invalid DTLS handshake 1103598 - CVE-2014-0195 openssl: Buffer overflow via DTLS invalid fragment 1103600 - CVE-2014-3470 openssl: client-side denial of service when using anonymous ECDH 6. Package List: Red Hat Enterprise Linux Desktop : Source: openssl-1.0.1e-16.el6_5.14.src.rpm i386: openssl-1.0.1e-16.el6_5.14.i686.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm x86_64: openssl-1.0.1e-16.el6_5.14.i686.rpm openssl-1.0.1e-16.el6_5.14.x86_64.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.x86_64.rpm Red Hat Enterprise Linux Desktop Optional : Source: openssl-1.0.1e-16.el6_5.14.src.rpm i386: openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-devel-1.0.1e-16.el6_5.14.i686.rpm openssl-perl-1.0.1e-16.el6_5.14.i686.rpm openssl-static-1.0.1e-16.el6_5.14.i686.rpm x86_64: openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.x86_64.rpm openssl-devel-1.0.1e-16.el6_5.14.i686.rpm openssl-devel-1.0.1e-16.el6_5.14.x86_64.rpm openssl-perl-1.0.1e-16.el6_5.14.x86_64.rpm openssl-static-1.0.1e-16.el6_5.14.x86_64.rpm Red Hat Enterprise Linux HPC Node : Source: openssl-1.0.1e-16.el6_5.14.src.rpm x86_64: openssl-1.0.1e-16.el6_5.14.i686.rpm openssl-1.0.1e-16.el6_5.14.x86_64.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional : Source: openssl-1.0.1e-16.el6_5.14.src.rpm x86_64: openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.x86_64.rpm openssl-devel-1.0.1e-16.el6_5.14.i686.rpm openssl-devel-1.0.1e-16.el6_5.14.x86_64.rpm openssl-perl-1.0.1e-16.el6_5.14.x86_64.rpm openssl-static-1.0.1e-16.el6_5.14.x86_64.rpm Red Hat Enterprise Linux Server : Source: openssl-1.0.1e-16.el6_5.14.src.rpm i386: openssl-1.0.1e-16.el6_5.14.i686.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-devel-1.0.1e-16.el6_5.14.i686.rpm ppc64: openssl-1.0.1e-16.el6_5.14.ppc.rpm openssl-1.0.1e-16.el6_5.14.ppc64.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.ppc.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.ppc64.rpm openssl-devel-1.0.1e-16.el6_5.14.ppc.rpm openssl-devel-1.0.1e-16.el6_5.14.ppc64.rpm s390x: openssl-1.0.1e-16.el6_5.14.s390.rpm openssl-1.0.1e-16.el6_5.14.s390x.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.s390.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.s390x.rpm openssl-devel-1.0.1e-16.el6_5.14.s390.rpm openssl-devel-1.0.1e-16.el6_5.14.s390x.rpm x86_64: openssl-1.0.1e-16.el6_5.14.i686.rpm openssl-1.0.1e-16.el6_5.14.x86_64.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.x86_64.rpm openssl-devel-1.0.1e-16.el6_5.14.i686.rpm openssl-devel-1.0.1e-16.el6_5.14.x86_64.rpm Red Hat Enterprise Linux Server Optional : Source: openssl-1.0.1e-16.el6_5.14.src.rpm i386: openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-perl-1.0.1e-16.el6_5.14.i686.rpm openssl-static-1.0.1e-16.el6_5.14.i686.rpm ppc64: openssl-debuginfo-1.0.1e-16.el6_5.14.ppc64.rpm openssl-perl-1.0.1e-16.el6_5.14.ppc64.rpm openssl-static-1.0.1e-16.el6_5.14.ppc64.rpm s390x: openssl-debuginfo-1.0.1e-16.el6_5.14.s390x.rpm openssl-perl-1.0.1e-16.el6_5.14.s390x.rpm openssl-static-1.0.1e-16.el6_5.14.s390x.rpm x86_64: openssl-debuginfo-1.0.1e-16.el6_5.14.x86_64.rpm openssl-perl-1.0.1e-16.el6_5.14.x86_64.rpm openssl-static-1.0.1e-16.el6_5.14.x86_64.rpm Red Hat Enterprise Linux Workstation : Source: openssl-1.0.1e-16.el6_5.14.src.rpm i386: openssl-1.0.1e-16.el6_5.14.i686.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-devel-1.0.1e-16.el6_5.14.i686.rpm x86_64: openssl-1.0.1e-16.el6_5.14.i686.rpm openssl-1.0.1e-16.el6_5.14.x86_64.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-debuginfo-1.0.1e-16.el6_5.14.x86_64.rpm openssl-devel-1.0.1e-16.el6_5.14.i686.rpm openssl-devel-1.0.1e-16.el6_5.14.x86_64.rpm Red Hat Enterprise Linux Workstation Optional : Source: openssl-1.0.1e-16.el6_5.14.src.rpm i386: openssl-debuginfo-1.0.1e-16.el6_5.14.i686.rpm openssl-perl-1.0.1e-16.el6_5.14.i686.rpm openssl-static-1.0.1e-16.el6_5.14.i686.rpm x86_64: openssl-debuginfo-1.0.1e-16.el6_5.14.x86_64.rpm openssl-perl-1.0.1e-16.el6_5.14.x86_64.rpm openssl-static-1.0.1e-16.el6_5.14.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2010-5298.html https://www.redhat.com/security/data/cve/CVE-2014-0195.html https://www.redhat.com/security/data/cve/CVE-2014-0198.html https://www.redhat.com/security/data/cve/CVE-2014-0221.html https://www.redhat.com/security/data/cve/CVE-2014-0224.html https://www.redhat.com/security/data/cve/CVE-2014-3470.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/site/articles/904433