Moderate: java-1.5.0-ibm security update

Synopsis

Moderate: java-1.5.0-ibm security update

Type/Severity

Security Advisory: Moderate

Topic

Updated java-1.5.0-ibm packages that fix a security issue are now available
for Red Hat Enterprise Linux 4 Extras and 5 Supplementary.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

Description

The IBM 1.5.0 Java release includes the IBM Java 2 Runtime Environment and
the IBM Java 2 Software Development Kit.

A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure
Sockets Layer) protocols handle 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. (CVE-2009-3555)

This update disables renegotiation in the Java Secure Socket Extension
(JSSE) component. Unsafe renegotiation can be re-enabled using the
com.ibm.jsse2.renegotiate property. Refer to the following Knowledgebase
article for details: http://kbase.redhat.com/faq/docs/DOC-20491

All users of java-1.5.0-ibm are advised to upgrade to these updated
packages, containing the IBM 1.5.0 SR11-FP1 Java release. All running
instances of IBM Java must be restarted for this update to take effect.

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

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Server - Extended Update Support 5.4 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 5.4 i386
• Red Hat Enterprise Linux Server - Extended Update Support 4ES x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 4ES i386
• Red Hat Enterprise Linux Server - Extended Update Support 4AS x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 4AS i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.4 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4AS s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4AS s390
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4AS ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

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

CVEs

• CVE-2009-3555
• CVE-2010-0837
• CVE-2010-0088
• CVE-2010-0084
• CVE-2010-0085
• CVE-2010-0838
• CVE-2010-0092
• CVE-2010-0091
• CVE-2010-0095
• CVE-2010-0094
• CVE-2010-0089
• CVE-2010-0087
• CVE-2010-0839

References

• http://www.redhat.com/security/updates/classification/#moderate
• http://kbase.redhat.com/faq/docs/DOC-20491