Date:         Thu, 25 Mar 2010 10:59:50 -0500
Reply-To:     Troy Dawson 
Sender:       Security Errata for Scientific Linux
              
From:         Troy Dawson 
Subject:      Security ERRATA Moderate: openssl097a on SL5.x i386/x86_64
Comments: To: "scientific-linux-errata@fnal.gov"
          

Synopsis:	Moderate: openssl097a security update
Issue date:	2010-03-25
CVE Names:	CVE-2009-3555

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

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: 
For the update to take effect, all services linked to the openssl097a 
library must be restarted, or the system rebooted.

SL 5.x

     SRPMS:
openssl097a-0.9.7a-9.el5_4.2.src.rpm
     i386:
openssl097a-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

-Connie Sieh
-Troy Dawson

SciLinux: CVE-2009-3555 Moderate: openssl097a SL5.x i386/x86_64

Moderate: openssl097a security update

Summary

A flaw was found in the way the TLS/SSL (Transport Layer Security/SecureSockets Layer) protocols handled session renegotiation. Aman-in-the-middle attacker could use this flaw to prefix arbitrary plaintext to a client's session (for example, an HTTPS connection to awebsite). This could force the server to process an attacker's requestas if authenticated using the victim's credentials. This updateaddresses this flaw by implementing the TLS Renegotiation IndicationExtension, as defined in RFC 5746. (CVE-2009-3555)Refer to the following Knowledgebase article for additional detailsabout this flaw:For the update to take effect, all services linked to the openssl097alibrary must be restarted, or the system rebooted.SL 5.xSRPMS:openssl097a-0.9.7a-9.el5_4.2.src.rpmi386:openssl097a-0.9.7a-9.el5_4.2.i386.rpmx86_64:openssl097a-0.9.7a-9.el5_4.2.i386.rpmopenssl097a-0.9.7a-9.el5_4.2.x86_64.rpm-Connie Sieh-Troy Dawson



Security Fixes

Severity
Issued Date: : 2010-03-25
CVE Names: CVE-2009-3555
CVE-2009-3555 TLS: MITM attacks via session renegotiation

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