Summary

pgjdbc is an open source postgresql JDBC Driver. In affected versions a prepared statement using either `PreparedStatement.setText(int, InputStream)` or `PreparedStatemet.setBytea(int, InputStream)` will create a temporary file if the InputStream is larger than 2k. This will create a temporary file which is readable by other users on Unix like systems, but not MacOS. On Unix like systems, the system's temporary directory is shared between all users on that system. Because of this, when files and directories are written into this directory they are, by default, readable by other users on that same system. This vulnerability does not allow other users to overwrite the contents of these directories or files. This is purely an information disclosure vulnerability. Because certain JDK file system APIs were only added in JDK 1.7, this this fix is dependent upon the version of the JDK you are using. Java 1.7 and higher users: this vulnerability is fixed in 4.5.0. Java 1.6 and lower users: no patch is available. If you are unable to patch or are stuck running on Java 1.6, specifying the java.io.tmpdir system environment variable to a directory that is exclusively owned by the executing user will mitigate this vulnerability.

Products Affected

Brocade SANnav prior to version v2.2.2a are affected.

Products Confirmed Not Affected

Brocade Fabric OS and Brocade ASCG are not affected

Solution

Brocade SANnav versions v2.2.2a, v2.3.0 and later releases remove the postgresql components from the final running package.  The down-level postgresql component is contained within the RPM pacakge to allow for migration from older versions of SANnav, but once the migration is compete, the downlevel postgresql components are removed from the running package.   SANnav v2.2.2a, v2.3.0 and later versions are not exploitable as the vulnerable code is no longer present in the running package.

Revision History

Disclaimer

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