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Red Hat Security Advisory
Synopsis: Moderate: icedtea-web security, bug fix, and enhancement update
Advisory ID: RHSA-2016:0778-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-0778.html
Issue date: 2016-05-10
CVE Names: CVE-2015-5234 CVE-2015-5235
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1. Summary:
An update for icedtea-web is now available for Red Hat Enterprise Linux 6.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Desktop (v. 6) – i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) – noarch
Red Hat Enterprise Linux HPC Node (v. 6) – x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) – noarch
Red Hat Enterprise Linux Server (v. 6) – i386, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) – noarch
Red Hat Enterprise Linux Workstation (v. 6) – i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) – noarch
3. 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. IcedTea-Web now also contains
PolicyEditor – a simple tool to configure Java policies.
The following packages have been upgraded to a newer upstream version:
icedtea-web (1.6.2). (BZ#1275523)
Security Fix(es):
* It was discovered that IcedTea-Web did not properly sanitize applet URLs
when storing applet trust settings. A malicious web page could use this
flaw to inject trust-settings configuration, and cause applets to be
executed without user approval. (CVE-2015-5234)
* It was discovered that IcedTea-Web did not properly determine an applet’s
origin when asking the user if the applet should be run. A malicious page
could use this flaw to cause IcedTea-Web to execute the applet without user
approval, or confuse the user into approving applet execution based on an
incorrectly indicated applet origin. (CVE-2015-5235)
Red Hat would like to thank Andrea Palazzo (Truel IT) for reporting these
issues.
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 6.8 Release Notes and Red Hat Enterprise Linux 6.8
Technical Notes linked from the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
Web browsers using the IcedTea-Web browser plug-in must be restarted for
this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1233667 – CVE-2015-5234 icedtea-web: unexpected permanent authorization of unsigned applets
1233697 – CVE-2015-5235 icedtea-web: applet origin spoofing
1299976 – jnlp.LaunchException: Fatal: Initialization Error – NullPointerException SecurityDialogs.showMissingALACAttributePanel when codebase not specified
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Source:
icedtea-web-1.6.2-1.el6.src.rpm
i386:
icedtea-web-1.6.2-1.el6.i686.rpm
icedtea-web-debuginfo-1.6.2-1.el6.i686.rpm
x86_64:
icedtea-web-1.6.2-1.el6.x86_64.rpm
icedtea-web-debuginfo-1.6.2-1.el6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
noarch:
icedtea-web-javadoc-1.6.2-1.el6.noarch.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
icedtea-web-1.6.2-1.el6.src.rpm
x86_64:
icedtea-web-1.6.2-1.el6.x86_64.rpm
icedtea-web-debuginfo-1.6.2-1.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
noarch:
icedtea-web-javadoc-1.6.2-1.el6.noarch.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
icedtea-web-1.6.2-1.el6.src.rpm
i386:
icedtea-web-1.6.2-1.el6.i686.rpm
icedtea-web-debuginfo-1.6.2-1.el6.i686.rpm
x86_64:
icedtea-web-1.6.2-1.el6.x86_64.rpm
icedtea-web-debuginfo-1.6.2-1.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
noarch:
icedtea-web-javadoc-1.6.2-1.el6.noarch.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
icedtea-web-1.6.2-1.el6.src.rpm
i386:
icedtea-web-1.6.2-1.el6.i686.rpm
icedtea-web-debuginfo-1.6.2-1.el6.i686.rpm
x86_64:
icedtea-web-1.6.2-1.el6.x86_64.rpm
icedtea-web-debuginfo-1.6.2-1.el6.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 6):
noarch:
icedtea-web-javadoc-1.6.2-1.el6.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2015-5234
https://access.redhat.com/security/cve/CVE-2015-5235
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.8_Release_Notes/index.html
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.8_Technical_Notes/index.html
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc.
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