USN-748-1: OpenJDK vulnerabilities

Releases

• Ubuntu 8.10

Packages

• openjdk-6 -

Details

It was discovered that font creation could leak temporary files.
If a user were tricked into loading a malicious program or applet,
a remote attacker could consume disk space, leading to a denial of
service. (CVE-2006-2426, CVE-2009-1100)

It was discovered that the lightweight HttpServer did not correctly close
files on dataless connections. A remote attacker could send specially
crafted requests, leading to a denial of service. (CVE-2009-1101)

The Java Runtime Environment did not correctly validate certain generated
code. If a user were tricked into running a malicious applet a remote
attacker could execute arbitrary code. (CVE-2009-1102)

It was discovered that LDAP connections did not close correctly.
A remote attacker could send specially crafted requests, leading to a
denial of service. (CVE-2009-1093)

Java LDAP routines did not unserialize certain data correctly. A remote
attacker could send specially crafted requests that could lead to
arbitrary code execution. (CVE-2009-1094)

Java did not correctly check certain JAR headers. 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-2009-1095, CVE-2009-1096)

It was discovered that PNG and GIF decoding in Java 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-2009-1097, CVE-2009-1098)

Update instructions

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

Ubuntu 8.10

• openjdk-6-jre-headless - 6b12-0ubuntu6.4
• openjdk-6-jre-lib - 6b12-0ubuntu6.4
• icedtea6-plugin - 6b12-0ubuntu6.4
• openjdk-6-jdk - 6b12-0ubuntu6.4
• openjdk-6-jre - 6b12-0ubuntu6.4

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

References

• CVE-2009-1101
• CVE-2009-1095
• CVE-2009-1100
• CVE-2009-1097
• CVE-2009-1096
• CVE-2009-1098
• CVE-2006-2426
• CVE-2009-1093
• CVE-2009-1102
• CVE-2009-1094