USN-923-1: OpenJDK vulnerabilities

7 April 2010

openjdk-6 vulnerabilities

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

  • Ubuntu 9.10
  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS

Software Description

  • openjdk-6


Marsh Ray and Steve Dispensa discovered a flaw in the TLS and SSLv3 protocols. If an attacker could perform a man in the middle attack at the start of a TLS connection, the attacker could inject arbitrary content at the beginning of the user’s session. (CVE-2009-3555)

It was discovered that Loader-constraint table, Policy/PolicyFile, Inflater/Deflater, drag/drop access, and deserialization did not correctly handle certain sensitive objects. If a user were tricked into running a specially crafted applet, private information could be leaked to a remote attacker, leading to a loss of privacy. (CVE-2010-0082, CVE-2010-0084, CVE-2010-0085, CVE-2010-0088, CVE-2010-0091, CVE-2010-0094)

It was discovered that AtomicReferenceArray, System.arraycopy, InetAddress, and HashAttributeSet did not correctly handle certain situations. If a remote attacker could trigger specific error conditions, a Java application could crash, leading to a denial of service. (CVE-2010-0092, CVE-2010-0093, CVE-2010-0095, CVE-2010-0845)

It was discovered that Pack200, CMM readMabCurveData, ImagingLib, and the AWT library did not correctly check buffer lengths. If a user or automated system were tricked into handling specially crafted JAR files or images, a remote attacker could crash the Java application or possibly gain user privileges (CVE-2010-0837, CVE-2010-0838, CVE-2010-0847, CVE-2010-0848).

It was discovered that applets did not correctly handle certain trust chains. If a user were tricked into running a specially crafted applet, a remote attacker could possibly run untrusted code with user privileges. (CVE-2010-0840)

Update instructions

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

Ubuntu 9.10
openjdk-6-jre - 6b16-1.6.1-3ubuntu3
openjdk-6-jre-lib - 6b16-1.6.1-3ubuntu3
Ubuntu 9.04
openjdk-6-jre - 6b14-1.4.1-0ubuntu13
openjdk-6-jre-lib - 6b14-1.4.1-0ubuntu13
Ubuntu 8.10
openjdk-6-jre - 6b12-0ubuntu6.7
openjdk-6-jre-lib - 6b12-0ubuntu6.7
Ubuntu 8.04 LTS
openjdk-6-jre - 6b11-2ubuntu2.2
openjdk-6-jre-lib - 6b11-2ubuntu2.2

To update your system, please follow these instructions:

After a standard system upgrade you need to restart all Java applications to effect the necessary changes.