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Ubuntu Security Notice USN-1373-2

Ubuntu Security Notice USN-1373-2
Posted Mar 2, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1373-2 - USN 1373-1 fixed vulnerabilities in OpenJDK 6 in Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04 for all architectures except for ARM (armel). This provides the corresponding OpenJDK 6 update for use with the ARM (armel) architecture in Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2011-5035, CVE-2011-3563, CVE-2012-0497, CVE-2012-0501, CVE-2012-0502, CVE-2012-0503, CVE-2012-0505, CVE-2012-0506, CVE-2012-0507, CVE-2011-3563, CVE-2011-5035, CVE-2012-0497, CVE-2012-0501, CVE-2012-0502, CVE-2012-0503, CVE-2012-0505, CVE-2012-0506, CVE-2012-0507
SHA-256 | d63f63cce13067e86594d7b41cc4fcfc48a0a4fe97f8a49fdbb9d9b6da4a1a42

Ubuntu Security Notice USN-1373-2

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1373-2
March 01, 2012

openjdk-6b18 vulnerabilities
============================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS

Summary:

Multiple vulnerabilities in OpenJDK 6 for the ARM architecture have
been fixed.

Software Description:
- openjdk-6b18: Open Source Java implementation

Details:

USN 1373-1 fixed vulnerabilities in OpenJDK 6 in Ubuntu 10.04 LTS,
Ubuntu 10.10 and Ubuntu 11.04 for all architectures except for ARM
(armel). This provides the corresponding OpenJDK 6 update for use
with the ARM (armel) architecture in Ubuntu 10.04 LTS, Ubuntu 10.10
and Ubuntu 11.04.

Original advisory details:

It was discovered that the Java HttpServer class did not limit the
number of headers read from a HTTP request. A remote attacker could
cause a denial of service by sending special requests that trigger
hash collisions predictably. (CVE-2011-5035)

ATTENTION: this update changes previous Java HttpServer class behavior
by limiting the number of request headers to 200. This may be increased
by adjusting the sun.net.httpserver.maxReqHeaders property.

It was discovered that the Java Sound component did not properly
check buffer boundaries. A remote attacker could use this to cause
a denial of service or view confidential data. (CVE-2011-3563)

It was discovered that the Java2D implementation does not properly
check graphics rendering objects before passing them to the native
renderer. A remote attacker could use this to cause a denial of
service or to bypass Java sandbox restrictions. (CVE-2012-0497)

It was discovered that an off-by-one error exists in the Java ZIP
file processing code. An attacker could us this to cause a denial of
service through a maliciously crafted ZIP file. (CVE-2012-0501)

It was discovered that the Java AWT KeyboardFocusManager did not
properly enforce keyboard focus security policy. A remote attacker
could use this with an untrusted application or applet to grab keyboard
focus and possibly expose confidential data. (CVE-2012-0502)

It was discovered that the Java TimeZone class did not properly enforce
security policy around setting the default time zone. A remote attacker
could use this with an untrusted application or applet to set a new
default time zone and bypass Java sandbox restrictions. (CVE-2012-0503)

It was discovered the Java ObjectStreamClass did not throw
an accurately identifiable exception when a deserialization
failure occurred. A remote attacker could use this with
an untrusted application or applet to bypass Java sandbox
restrictions. (CVE-2012-0505)

It was discovered that the Java CORBA implementation did not properly
protect repository identifiers on certain CORBA objects. A remote
attacker could use this to corrupt object data. (CVE-2012-0506)

It was discovered that the Java AtomicReferenceArray class
implementation did not properly check if an array was of
the expected Object[] type. A remote attacker could use this
with a malicious application or applet to bypass Java sandbox
restrictions. (CVE-2012-0507)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.04:
icedtea-6-jre-cacao 6b18-1.8.13-0ubuntu1~11.04.1
icedtea-6-jre-jamvm 6b18-1.8.13-0ubuntu1~11.04.1
openjdk-6-jre 6b18-1.8.13-0ubuntu1~11.04.1
openjdk-6-jre-headless 6b18-1.8.13-0ubuntu1~11.04.1
openjdk-6-jre-zero 6b18-1.8.13-0ubuntu1~11.04.1

Ubuntu 10.10:
icedtea-6-jre-cacao 6b18-1.8.13-0ubuntu1~10.10.1
openjdk-6-jre 6b18-1.8.13-0ubuntu1~10.10.1
openjdk-6-jre-headless 6b18-1.8.13-0ubuntu1~10.10.1
openjdk-6-jre-zero 6b18-1.8.13-0ubuntu1~10.10.1

Ubuntu 10.04 LTS:
icedtea-6-jre-cacao 6b18-1.8.13-0ubuntu1~10.04.1
openjdk-6-jre 6b18-1.8.13-0ubuntu1~10.04.1
openjdk-6-jre-headless 6b18-1.8.13-0ubuntu1~10.04.1
openjdk-6-jre-zero 6b18-1.8.13-0ubuntu1~10.04.1

After a standard system update you need to restart any Java applications
or applets to make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1373-2
http://www.ubuntu.com/usn/usn-1373-1
CVE-2011-3563, CVE-2011-5035, CVE-2012-0497, CVE-2012-0501,
CVE-2012-0502, CVE-2012-0503, CVE-2012-0505, CVE-2012-0506,
CVE-2012-0507

Package Information:
https://launchpad.net/ubuntu/+source/openjdk-6b18/6b18-1.8.13-0ubuntu1~11.04.1
https://launchpad.net/ubuntu/+source/openjdk-6b18/6b18-1.8.13-0ubuntu1~10.10.1
https://launchpad.net/ubuntu/+source/openjdk-6b18/6b18-1.8.13-0ubuntu1~10.04.1
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