Topic

Updated java-1.7.0-ibm packages that fix several security issues are now
available for Red Hat Enterprise Linux 5 Supplementary.

Red Hat Product Security has rated this update as having Critical 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.

Description

IBM Java SE version 7 includes the IBM Java Runtime Environment and the IBM
Java Software Development Kit.

This update fixes several vulnerabilities in the IBM Java Runtime
Environment and the IBM Java Software Development Kit. Further information
about these flaws can be found on the IBM Java Security alerts page, listed
in the References section. (CVE-2015-1931, CVE-2015-2590, CVE-2015-2601,
CVE-2015-2613, CVE-2015-2619, CVE-2015-2621, CVE-2015-2625, CVE-2015-2632,
CVE-2015-2637, CVE-2015-2638, CVE-2015-2664, CVE-2015-4000, CVE-2015-4729,
CVE-2015-4731, CVE-2015-4732, CVE-2015-4733, CVE-2015-4736, CVE-2015-4748,
CVE-2015-4749, CVE-2015-4760)

Note: This update forces the TLS/SSL client implementation in IBM JDK to
reject DH key sizes below 768 bits to address the CVE-2015-4000 issue.
Refer to Red Hat Bugzilla bug 1223211, linked to in the References section,
for additional details about this change.

All users of java-1.7.0-ibm are advised to upgrade to these updated
packages, containing the IBM Java SE 7 SR9-FP10 release. All running
instances of IBM Java must be restarted for the update to take effect.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 1223211 - CVE-2015-4000 LOGJAM: TLS connections which support export grade DHE key-exchange are vulnerable to MITM attacks
• BZ - 1241965 - CVE-2015-2625 OpenJDK: name for reverse DNS lookup used in certificate identity check (JSSE, 8067694)
• BZ - 1242019 - CVE-2015-2601 OpenJDK: non-constant time comparisons in crypto code (JCE, 8074865)
• BZ - 1242234 - CVE-2015-4731 OpenJDK: improper permission checks in MBeanServerInvocationHandler (JMX, 8076397)
• BZ - 1242240 - CVE-2015-4732 OpenJDK: insufficient context checks during object deserialization (Libraries, 8076405)
• BZ - 1242275 - CVE-2015-4733 OpenJDK: RemoteObjectInvocationHandler allows calling finalize() (RMI, 8076409)
• BZ - 1242281 - CVE-2015-4748 OpenJDK: incorrect OCSP nextUpdate checking (Libraries, 8075374)
• BZ - 1242372 - CVE-2015-2621 OpenJDK: incorrect code permission checks in RMIConnectionImpl (JMX, 8075853)
• BZ - 1242379 - CVE-2015-4749 OpenJDK: DnsClient fails to release request information after error (JNDI, 8075378)
• BZ - 1242394 - CVE-2015-2632 ICU: integer overflow in LETableReference verifyLength() (OpenJDK 2D, 8077520)
• BZ - 1242447 - CVE-2015-4760 ICU: missing boundary checks in layout engine (OpenJDK 2D, 8071715)
• BZ - 1242456 - CVE-2015-2613 NSS / JCE: missing EC parameter validation in ECDH_Derive() (OpenJDK JCE, 8075833)
• BZ - 1243139 - CVE-2015-2590 OpenJDK: deserialization issue in ObjectInputStream.readSerialData() (Libraries, 8076401)
• BZ - 1243283 - CVE-2015-2638 Oracle JDK: unspecified vulnerability fixed in 6u101, 7u85 and 8u51 (2D)
• BZ - 1243284 - CVE-2015-4736 Oracle JDK: unspecified vulnerability fixed in 7u85 and 8u51 (Deployment)
• BZ - 1243286 - CVE-2015-2619 Oracle JDK: unspecified vulnerability fixed in 7u85 and 8u51 (2D)
• BZ - 1243287 - CVE-2015-2637 Oracle JDK: unspecified vulnerability fixed in 6u101, 7u85 and 8u51 (2D)
• BZ - 1243290 - CVE-2015-4729 Oracle JDK: unspecified vulnerability fixed in 7u85 and 8u51 (Deployment)
• BZ - 1243300 - CVE-2015-2664 Oracle JDK: unspecified vulnerability fixed in 6u101, 7u85 and 8u51 (Deployment)
• BZ - 1244828 - CVE-2015-1931 IBM JDK: plain text data stored in memory dumps

CVEs

• CVE-2015-4000
• CVE-2015-4748
• CVE-2015-2625
• CVE-2015-2621
• CVE-2015-2601
• CVE-2015-4732
• CVE-2015-2632
• CVE-2015-2590
• CVE-2015-4760
• CVE-2015-4731
• CVE-2015-4749
• CVE-2015-4733
• CVE-2015-2638
• CVE-2015-2637
• CVE-2015-2664
• CVE-2015-4736
• CVE-2015-4729
• CVE-2015-2613
• CVE-2015-2619
• CVE-2015-1931

References

• https://access.redhat.com/security/updates/classification/#critical
• http://www.ibm.com/developerworks/java/jdk/alerts/
• https://bugzilla.redhat.com/show_bug.cgi?id=1223211#c33