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Ubuntu Security Notice USN-2706-1

Ubuntu Security Notice USN-2706-1
Posted Aug 7, 2015
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2706-1 - Several vulnerabilities were discovered in the OpenJDK JRE related to information disclosure, data integrity, and availability. An attacker could exploit these to cause a denial of service or expose sensitive data over the network. Several vulnerabilities were discovered in the cryptographic components of the OpenJDK JRE. An attacker could exploit these to expose sensitive data over the network. Various other issues were also addressed.

tags | advisory, denial of service, vulnerability, info disclosure
systems | linux, ubuntu
advisories | CVE-2015-2590, CVE-2015-2601, CVE-2015-2613, CVE-2015-2621, CVE-2015-2625, CVE-2015-2628, CVE-2015-2632, CVE-2015-2808, CVE-2015-4000, CVE-2015-4731, CVE-2015-4732, CVE-2015-4733, CVE-2015-4748, CVE-2015-4749, CVE-2015-4760
MD5 | 6c24cc1b71b6bfcf0a3e0c1030146b01

Ubuntu Security Notice USN-2706-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-2706-1
August 06, 2015

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

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

- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in OpenJDK 6.

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

Details:

Several vulnerabilities were discovered in the OpenJDK JRE related to
information disclosure, data integrity, and availability. An attacker
could exploit these to cause a denial of service or expose sensitive
data over the network. (CVE-2015-2590, CVE-2015-2628, CVE-2015-4731,
CVE-2015-4732, CVE-2015-4733, CVE-2015-4760, CVE-2015-4748)

Several vulnerabilities were discovered in the cryptographic components
of the OpenJDK JRE. An attacker could exploit these to expose sensitive
data over the network. (CVE-2015-2601, CVE-2015-2808, CVE-2015-4000,
CVE-2015-2625, CVE-2015-2613)

As a security improvement, this update modifies OpenJDK behavior to
disable RC4 TLS/SSL cipher suites by default.

As a security improvement, this update modifies OpenJDK behavior to
reject DH key sizes below 768 bits by default, preventing a possible
downgrade attack.

Several vulnerabilities were discovered in the OpenJDK JRE related
to information disclosure. An attacker could exploit these to expose
sensitive data over the network. (CVE-2015-2621, CVE-2015-2632)

A vulnerability was discovered with how the JNDI component of the
OpenJDK JRE handles DNS resolutions. A remote attacker could exploit
this to cause a denial of service. (CVE-2015-4749)

Update instructions:

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

Ubuntu 12.04 LTS:
icedtea-6-jre-cacao 6b36-1.13.8-0ubuntu1~12.04
icedtea-6-jre-jamvm 6b36-1.13.8-0ubuntu1~12.04
openjdk-6-jdk 6b36-1.13.8-0ubuntu1~12.04
openjdk-6-jre 6b36-1.13.8-0ubuntu1~12.04
openjdk-6-jre-headless 6b36-1.13.8-0ubuntu1~12.04
openjdk-6-jre-lib 6b36-1.13.8-0ubuntu1~12.04
openjdk-6-jre-zero 6b36-1.13.8-0ubuntu1~12.04
openjdk-6-source 6b36-1.13.8-0ubuntu1~12.04

This update uses a new upstream release, which includes additional
bug fixes. 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-2706-1
CVE-2015-2590, CVE-2015-2601, CVE-2015-2621, CVE-2015-2625,
CVE-2015-2628, CVE-2015-2632, CVE-2015-2808, CVE-2015-4000,
CVE-2015-4731, CVE-2015-4732, CVE-2015-4733, CVE-2015-4748,
CVE-2015-4749, CVE-2015-4760

Package Information:
https://launchpad.net/ubuntu/+source/openjdk-6/6b36-1.13.8-0ubuntu1~12.04

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