Important: java-1.6.0-openjdk security update
Security Advisory: Important
Updated java-1.6.0-openjdk packages that fix several security issues are
now available for Red Hat Enterprise Linux 5.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
These packages provide the OpenJDK 6 Java Runtime Environment and the
OpenJDK 6 Software Development Kit. The Java Runtime Environment (JRE)
contains the software and tools that users need to run applications written
using the Java programming language.
A flaw was found in the way that the Java Virtual Machine (JVM) handled
temporary font files. A malicious applet could use this flaw to use large
amounts of disk space, causing a denial of service. (CVE-2006-2426)
A memory leak flaw was found in LittleCMS (embedded in OpenJDK). An
application using color profiles could use excessive amounts of memory, and
possibly crash after using all available memory, if used to open
specially-crafted images. (CVE-2009-0581)
Multiple integer overflow flaws which could lead to heap-based buffer
overflows, as well as multiple insufficient input validation flaws, were
found in the way LittleCMS handled color profiles. An attacker could use
these flaws to create a specially-crafted image file which could cause a
Java application to crash or, possibly, execute arbitrary code when opened.
(CVE-2009-0723, CVE-2009-0733)
A null pointer dereference flaw was found in LittleCMS. An application
using color profiles could crash while converting a specially-crafted image
file. (CVE-2009-0793)
A flaw in the Java API for XML Web Services (JAX-WS) service endpoint
handling could allow a remote attacker to cause a denial of service on the
server application hosting the JAX-WS service endpoint. (CVE-2009-1101)
A flaw in the way the Java Runtime Environment initialized LDAP connections
could allow a remote, authenticated user to cause a denial of service on
the LDAP service. (CVE-2009-1093)
A flaw in the Java Runtime Environment LDAP client could allow malicious
data from an LDAP server to cause arbitrary code to be loaded and then run
on an LDAP client. (CVE-2009-1094)
Several buffer overflow flaws were found in the Java Runtime Environment
unpack200 functionality. An untrusted applet could extend its privileges,
allowing it to read and write local files, as well as to execute local
applications with the privileges of the user running the applet.
(CVE-2009-1095, CVE-2009-1096)
A flaw in the Java Runtime Environment Virtual Machine code generation
functionality could allow untrusted applets to extend their privileges. An
untrusted applet could extend its privileges, allowing it to read and write
local files, as well as execute local applications with the privileges
of the user running the applet. (CVE-2009-1102)
A buffer overflow flaw was found in the splash screen processing. A remote
attacker could extend privileges to read and write local files, as well as
to execute local applications with the privileges of the user running the
java process. (CVE-2009-1097)
A buffer overflow flaw was found in how GIF images were processed. A remote
attacker could extend privileges to read and write local files, as well as
execute local applications with the privileges of the user running the
java process. (CVE-2009-1098)
Note: The flaws concerning applets in this advisory, CVE-2009-1095,
CVE-2009-1096, and CVE-2009-1102, can only be triggered in
java-1.6.0-openjdk by calling the "appletviewer" application.
All users of java-1.6.0-openjdk are advised to upgrade to these updated
packages, which resolve these issues. All running instances of OpenJDK Java
must be restarted for the update to take effect.
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via 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
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