1. Ubuntu Security Notices
  2. USN-814-1

USN-814-1: OpenJDK vulnerabilities

Publication date

11 August 2009

Overview

OpenJDK vulnerabilities

Releases

Packages

Details

It was discovered that the XML HMAC signature system did not
correctly check certain lengths. If an attacker sent a truncated
HMAC, it could bypass authentication, leading to potential privilege
escalation. (CVE-2009-0217)

It was discovered that JAR bundles would appear signed if only one element
was signed. If a user were tricked into running a malicious Java applet, a
remote attacker could exploit this to gain access to private information and
potentially run untrusted code. (CVE-2009-1896)

It was discovered that certain variables could leak information. If a
user were tricked into running a malicious Java applet, a remote attacker
could exploit this to gain access to private information and potentially
run untrusted code. (CVE-2009-2475, CVE-2009-2690)

A flaw was...

It was discovered that the XML HMAC signature system did not
correctly check certain lengths. If an attacker sent a truncated
HMAC, it could bypass authentication, leading to potential privilege
escalation. (CVE-2009-0217)

It was discovered that JAR bundles would appear signed if only one element
was signed. If a user were tricked into running a malicious Java applet, a
remote attacker could exploit this to gain access to private information and
potentially run untrusted code. (CVE-2009-1896)

It was discovered that certain variables could leak information. If a
user were tricked into running a malicious Java applet, a remote attacker
could exploit this to gain access to private information and potentially
run untrusted code. (CVE-2009-2475, CVE-2009-2690)

A flaw was discovered the OpenType checking. If a user were tricked
into running a malicious Java applet, a remote attacker could bypass
access restrictions. (CVE-2009-2476)

It was discovered that the XML processor did not correctly check
recursion. If a user or automated system were tricked into processing
a specially crafted XML, the system could crash, leading to a denial of
service. (CVE-2009-2625)

It was discovered that the Java audio subsystem did not correctly validate
certain parameters. If a user were tricked into running an untrusted
applet, a remote attacker could read system properties. (CVE-2009-2670)

Multiple flaws were discovered in the proxy subsystem. If a user
were tricked into running an untrusted applet, a remote attacker could
discover local user names, obtain access to sensitive information, or
bypass socket restrictions, leading to a loss of privacy. (CVE-2009-2671,
CVE-2009-2672, CVE-2009-2673)

Flaws were discovered in the handling of JPEG images, Unpack200 archives,
and JDK13Services. If a user were tricked into running an untrusted
applet, a remote attacker could load a specially crafted file that would
bypass local file access protections and run arbitrary code with user
privileges. (CVE-2009-2674, CVE-2009-2675, CVE-2009-2676, CVE-2009-2689)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
9.04 jaunty openjdk-6-jre-lib –  6b14-1.4.1-0ubuntu11
icedtea6-plugin –  6b14-1.4.1-0ubuntu11
openjdk-6-jre –  6b14-1.4.1-0ubuntu11
8.10 intrepid openjdk-6-jre-lib –  6b12-0ubuntu6.5
icedtea6-plugin –  6b12-0ubuntu6.5
openjdk-6-jre –  6b12-0ubuntu6.5

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References

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