USN-713-1: openjdk-6 vulnerabilities

27 January 2009

OpenJDK vulnerabilities

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

  • Ubuntu 8.10

Software Description

  • openjdk-6

Details

It was discovered that Java did not correctly handle untrusted applets. If a user were tricked into running a malicious applet, a remote attacker could gain user privileges, or list directory contents. (CVE-2008-5347, CVE-2008-5350)

It was discovered that Kerberos authentication and RSA public key processing were not correctly handled in Java. A remote attacker could exploit these flaws to cause a denial of service. (CVE-2008-5348, CVE-2008-5349)

It was discovered that Java accepted UTF-8 encodings that might be handled incorrectly by certain applications. A remote attacker could bypass string filters, possible leading to other exploits. (CVE-2008-5351)

Overflows were discovered in Java JAR processing. If a user or automated system were tricked into processing a malicious JAR file, a remote attacker could crash the application, leading to a denial of service. (CVE-2008-5352, CVE-2008-5354)

It was discovered that Java calendar objects were not unserialized safely. If a user or automated system were tricked into processing a specially crafted calendar object, a remote attacker could execute arbitrary code with user privileges. (CVE-2008-5353)

It was discovered that the Java image handling code could lead to memory corruption. If a user or automated system were tricked into processing a specially crafted image, a remote attacker could crash the application, leading to a denial of service. (CVE-2008-5358, CVE-2008-5359)

It was discovered that temporary files created by Java had predictable names. If a user or automated system were tricked into processing a specially crafted JAR file, a remote attacker could overwrite sensitive information. (CVE-2008-5360)

Update instructions

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

Ubuntu 8.10
icedtea6-plugin - 6b12-0ubuntu6.1
openjdk-6-jdk - 6b12-0ubuntu6.1
openjdk-6-jre - 6b12-0ubuntu6.1
openjdk-6-jre-headless - 6b12-0ubuntu6.1
openjdk-6-jre-lib - 6b12-0ubuntu6.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References