Home / mailings [USN-1521-1] IcedTea-Web vulnerabilities
Posted on 01 August 2012
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==========================================================================
Ubuntu Security Notice USN-1521-1
July 31, 2012
icedtea-web vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
Summary:
The IcedTea-Web Java web browser plugin could be made to crash or
possibly run programs as your login if it opened a specially crafted
applet.
Software Description:
- icedtea-web: A web browser plugin to execute Java applets
Details:
Chamal De Silva discovered that the IcedTea-Web Java web browser
plugin could dereference an uninitialized pointer. A remote attacker
could use this to craft a malicious web page that could cause a
denial of service by crashing the web browser or possibly execute
arbitrary code. (CVE-2012-3422)
Steven Bergom and others discovered that the IcedTea-Web Java web
browser plugin assumed that all strings provided by browsers are NULL
terminated, which is not guaranteed by the NPAPI (Netscape Plugin
Application Programming Interface). A remote attacker could use this
to craft a malicious Java applet that could cause a denial of service
by crashing the web browser, expose sensitive information or possibly
execute arbitrary code. (CVE-2012-3423)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
icedtea-6-plugin 1.2-2ubuntu1.1
icedtea-7-plugin 1.2-2ubuntu1.1
Ubuntu 11.10:
icedtea-6-plugin 1.2-2ubuntu0.11.10.2
Ubuntu 11.04:
icedtea-6-plugin 1.2-2ubuntu0.11.04.2
Ubuntu 10.04 LTS:
icedtea-6-plugin 1.2-2ubuntu0.10.04.2
After a standard system update you need to restart your web browser to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1521-1
CVE-2012-3422, CVE-2012-3423
Package Information:
https://launchpad.net/ubuntu/+source/icedtea-web/1.2-2ubuntu1.1
https://launchpad.net/ubuntu/+source/icedtea-web/1.2-2ubuntu0.11.10.2
https://launchpad.net/ubuntu/+source/icedtea-web/1.2-2ubuntu0.11.04.2
https://launchpad.net/ubuntu/+source/icedtea-web/1.2-2ubuntu0.10.04.2
