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Red Hat: RHSA-2010:0164-01 Moderate: OpenSSL TLS Vulnerability Advisory

red hat
Calendar Grey March 25, 2010
Dist Redhat Esm H88
New patch released for openssl097a on Red Hat Enterprise Linux 5 targeting a moderate security vulnerability associated with TLS.
Updated openssl097a packages that fix a security issue are now available for Red Hat Enterprise Linux 5

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

Summary

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.
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 this flaw: All openssl097a users should upgrade to these updated packages, which contain a backported patch to resolve this issue. For the update to take effect, all services linked to the openssl097a library must be restarted, or the system rebooted.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Enterprise Linux openssl update tls issue

References

https://access.redhat.com/security/cve/CVE-2009-3555 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: openssl097a-0.9.7a-9.el5_4.2.i386.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.i386.rpm
x86_64: openssl097a-0.9.7a-9.el5_4.2.i386.rpm openssl097a-0.9.7a-9.el5_4.2.x86_64.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.i386.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: openssl097a-0.9.7a-9.el5_4.2.i386.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.i386.rpm
ia64: openssl097a-0.9.7a-9.el5_4.2.i386.rpm openssl097a-0.9.7a-9.el5_4.2.ia64.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.i386.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.ia64.rpm
ppc: openssl097a-0.9.7a-9.el5_4.2.ppc.rpm openssl097a-0.9.7a-9.el5_4.2.ppc64.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.ppc.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.ppc64.rpm
s390x: openssl097a-0.9.7a-9.el5_4.2.s390.rpm openssl097a-0.9.7a-9.el5_4.2.s390x.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.s390.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.s390x.rpm
x86_64: openssl097a-0.9.7a-9.el5_4.2.i386.rpm openssl097a-0.9.7a-9.el5_4.2.x86_64.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.i386.rpm openssl097a-debuginfo-0.9.7a-9.el5_4.2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and

Read the Full Advisory


Advisory ID: RHSA-2010:0164-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2010:0164.html
Issue date: 2010-03-25

Topic

Updated openssl097a packages that fix a security issue are now availablefor Red Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat Enterprise Linux openssl update tls issue

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

533125 - CVE-2009-3555 TLS: MITM attacks via session renegotiation

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