10 - RHSA-2007:0829

Problem Description:

Updated java-1.5.0-ibm packages that correct several security issues are now available for Red Hat Enterprise Linux 4 Extras and 5 Supplementary.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 Extras - i386, ppc, s390, s390x, x86_64 Red Hat Desktop version 4 Extras - i386, x86_64 Red Hat Enterprise Linux ES version 4 Extras - i386, x86_64 Red Hat Enterprise Linux WS version 4 Extras - i386, x86_64 RHEL Desktop Supplementary (v. 5 client) - i386, x86_64 RHEL Supplementary (v. 5 server) - i386, ppc, s390x, x86_64

3. Problem description:

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

A security vulnerability in the Java Web Start component was discovered. An untrusted application could elevate it's privileges, allowing it to read and write local files that are accessible to the user running the Java Web Start application. (CVE-2007-2435)

A buffer overflow in the Java Runtime Environment image handling code was found. An untrusted applet or application could use this flaw to elevate its privileges and potentially execute arbitrary code as the user running the java virtual machine. (CVE-2007-2788, CVE-2007-2789, CVE-2007-3004)

An unspecified vulnerability was discovered in the Java Runtime Environment. An untrusted applet or application could cause the java virtual machine to become unresponsive. (CVE-2007-3005)

The Javadoc tool was able to generate HTML documentation pages that contained cross-site scripting (XSS) vulnerabilities. A remote attacker could use this to inject arbitrary web script or HTML. (CVE-2007-3503)

The Java Web Start URL parsing component contains a buffer overflow vulnerability within the parsing code for JNLP files. A remote attacker could create a malicious JNLP file that could trigger this flaw and execute arbitrary code when opened. (CVE-2007-3655)

A flaw was found in the applet class loader. An untrusted applet could use this flaw to circumvent network access restrictions, possibly connecting to services hosted on the machine that executed the applet. (CVE-2007-3922)

All users of java-ibm-1.5.0 should upgrade to these updated packages, which contain IBM's 1.5.0 SR5a Java release that resolves these issues.

4. Solution:

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

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs.

Please note that this update is also available via Red Hat Network. Many people find this an easier way to apply updates. To use Red Hat Network, launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

239660 - CVE-2007-2435 javaws vulnerabilities 242595 - CVE-2007-3004 Integer overflow in IBM JDK's ICC profile parser 246765 - CVE-2007-3503 HTML files generated with Javadoc are vulnerable to a XSS 248864 - CVE-2007-3655 A buffer overflow vulnerability in Java Web Start URL parsing code 249533 - CVE-2007-3922 Vulnerability in the Java Runtime Environment May Allow an Untrusted Applet to Circumvent Network Access Restrictions 250725 - CVE-2007-2788 Integer overflow in the embedded ICC profile image parser in Sun Java Development Kit 250729 - CVE-2007-2789 BMP image parser vulnerability 250733 - CVE-2007-3005 Unspecified vulnerability in Sun JRE