icedtea-web: multiple vulnerabilities

Omair Majid discovered an information disclosure flaw in the JNLP (Java Network Launching Protocol) implementation used in IcedTea and IcedTea-web. An unsigned Java Web Start application or Java Applet could use this flaw to determine a path to the cache directory (/home/<username>/.netx/cache/) used to store downloaded jars for Web Start application or Applet by querying class's ClassLoader properties. This discloses full path to user's home directory on the local system and user's login name.

Omair Majid discovered a flaw in the JNLP (Java Network Launching Protocol) implementation used in IcedTea-web. An unsigned Java Web Start application could use this flaw to manipulate content of the Security Warning dialog to show different file name than the one access to which was requested by the applications. This could confuse user to grant unintended access to local files.