RHSA-2011:1100 - Security Advisory

Topic

Updated icedtea-web packages that fix two security issues are now available
for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
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

The IcedTea-Web project provides a Java web browser plug-in and an
implementation of Java Web Start, which is based on the Netx project. It
also contains a configuration tool for managing deployment settings for the
plug-in and Web Start implementations.

A flaw was discovered in the JNLP (Java Network Launching Protocol)
implementation in IcedTea-Web. An unsigned Java Web Start application
could use this flaw to manipulate the content of a Security Warning
dialog box, to trick a user into granting the application unintended access
permissions to local files. (CVE-2011-2514)

An information disclosure flaw was discovered in the JNLP implementation in
IcedTea-Web. An unsigned Java Web Start application or Java applet could
use this flaw to determine the path to the cache directory used to store
downloaded Java class and archive files, and therefore determine the user's
login name. (CVE-2011-2513)

All icedtea-web users should upgrade to these updated packages, which
contain backported patches to correct these issues.

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
https://access.redhat.com/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.1 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.1 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.1 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.1 i386
• Red Hat Virtual Storage Appliance (from RHUI) 6.1 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64

Fixes

• BZ - 718164 - CVE-2011-2513 icedtea, icedtea-web: home directory path disclosure to untrusted applications
• BZ - 718170 - CVE-2011-2514 icedtea-web: Java Web Start security warning dialog manipulation

CVEs

• CVE-2011-2513
• CVE-2011-2514

References

• https://access.redhat.com/security/updates/classification/#moderate