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===================================================================== Red Hat Security Advisory
Synopsis: Important: openssl security update Advisory ID: RHSA-2010:0162-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0162.html Issue date: 2010-03-25 CVE Names: CVE-2009-3245 CVE-2009-3555 CVE-2010-0433 =====================================================================
1. Summary:
Updated openssl packages that fix several security issues are now available for Red Hat Enterprise Linux 5.
The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
2. Relevant releases/architectures:
RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
3. Description:
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a full-strength, general purpose cryptography library.
It was discovered that OpenSSL did not always check the return value of the bn_wexpand() function. An attacker able to trigger a memory allocation failure in that function could cause an application using the OpenSSL library to crash or, possibly, execute arbitrary code. (CVE-2009-3245)
A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handled session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client's session (for example, an HTTPS connection to a website). This could force the server to process an attacker's request as if authenticated using the victim's credentials. This update addresses this flaw by implementing the TLS Renegotiation Indication Extension, as defined in RFC 5746. (CVE-2009-3555)
Refer to the following Knowledgebase article for additional details about the CVE-2009-3555 flaw: http://kbase.redhat.com/faq/docs/DOC-20491
A missing return value check flaw was discovered in OpenSSL, that could possibly cause OpenSSL to call a Kerberos library function with invalid arguments, resulting in a NULL pointer dereference crash in the MIT Kerberos library. In certain configurations, a remote attacker could use this flaw to crash a TLS/SSL server using OpenSSL by requesting Kerberos cipher suites during the TLS handshake. (CVE-2010-0433)
All OpenSSL users should upgrade to these updated packages, which contain backported patches to resolve 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 http://kbase.redhat.com/faq/docs/DOC-11259
5. Bugs fixed (http://bugzilla.redhat.com/):
533125 - CVE-2009-3555 TLS: MITM attacks via session renegotiation 567711 - Nessus PCI scan segfaults openssl dependent products due to kerberos enabled in openssl 569774 - CVE-2010-0433 openssl: crash caused by a missing krb5_sname_to_principal() return value check 570924 - CVE-2009-3245 openssl: missing bn_wexpand return value checks
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source: openssl-0.9.8e-12.el5_4.6.src.rpm
i386: openssl-0.9.8e-12.el5_4.6.i386.rpm openssl-0.9.8e-12.el5_4.6.i686.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.i386.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.i686.rpm openssl-perl-0.9.8e-12.el5_4.6.i386.rpm
x86_64: openssl-0.9.8e-12.el5_4.6.i686.rpm openssl-0.9.8e-12.el5_4.6.x86_64.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.i686.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.x86_64.rpm openssl-perl-0.9.8e-12.el5_4.6.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source: openssl-0.9.8e-12.el5_4.6.src.rpm
i386: openssl-debuginfo-0.9.8e-12.el5_4.6.i386.rpm openssl-devel-0.9.8e-12.el5_4.6.i386.rpm
x86_64: openssl-debuginfo-0.9.8e-12.el5_4.6.i386.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.x86_64.rpm openssl-devel-0.9.8e-12.el5_4.6.i386.rpm openssl-devel-0.9.8e-12.el5_4.6.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: openssl-0.9.8e-12.el5_4.6.src.rpm
i386: openssl-0.9.8e-12.el5_4.6.i386.rpm openssl-0.9.8e-12.el5_4.6.i686.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.i386.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.i686.rpm openssl-devel-0.9.8e-12.el5_4.6.i386.rpm openssl-perl-0.9.8e-12.el5_4.6.i386.rpm
ia64: openssl-0.9.8e-12.el5_4.6.i686.rpm openssl-0.9.8e-12.el5_4.6.ia64.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.i686.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.ia64.rpm openssl-devel-0.9.8e-12.el5_4.6.ia64.rpm openssl-perl-0.9.8e-12.el5_4.6.ia64.rpm
ppc: openssl-0.9.8e-12.el5_4.6.ppc.rpm openssl-0.9.8e-12.el5_4.6.ppc64.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.ppc.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.ppc64.rpm openssl-devel-0.9.8e-12.el5_4.6.ppc.rpm openssl-devel-0.9.8e-12.el5_4.6.ppc64.rpm openssl-perl-0.9.8e-12.el5_4.6.ppc.rpm
s390x: openssl-0.9.8e-12.el5_4.6.s390.rpm openssl-0.9.8e-12.el5_4.6.s390x.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.s390.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.s390x.rpm openssl-devel-0.9.8e-12.el5_4.6.s390.rpm openssl-devel-0.9.8e-12.el5_4.6.s390x.rpm openssl-perl-0.9.8e-12.el5_4.6.s390x.rpm
x86_64: openssl-0.9.8e-12.el5_4.6.i686.rpm openssl-0.9.8e-12.el5_4.6.x86_64.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.i386.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.i686.rpm openssl-debuginfo-0.9.8e-12.el5_4.6.x86_64.rpm openssl-devel-0.9.8e-12.el5_4.6.i386.rpm openssl-devel-0.9.8e-12.el5_4.6.x86_64.rpm openssl-perl-0.9.8e-12.el5_4.6.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://www.redhat.com/security/team/key/#package
7. References:
https://www.redhat.com/security/data/cve/CVE-2009-3245.html https://www.redhat.com/security/data/cve/CVE-2009-3555.html https://www.redhat.com/security/data/cve/CVE-2010-0433.html http://www.redhat.com/security/updates/classification/#important http://kbase.redhat.com/faq/docs/DOC-20491
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/
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