mysql-dfsg-5.0 - several

Several vulnerabilities have been discovered in the MySQL
database server.
The Common Vulnerabilities and Exposures project identifies the
following problems:

• CVE-2010-1626
  MySQL allows local users to delete the data and index files of another
  user’s MyISAM table via a symlink attack in conjunction with the DROP
  TABLE command.
• CVE-2010-1848
  MySQL failed to check the table name argument of a COM_FIELD_LIST
  command packet for validity and compliance to acceptable table name
  standards. This allows an authenticated user with SELECT privileges on
  one table to obtain the field definitions of any table in all other
  databases and potentially of other MySQL instances accessible from the
  server’s file system.
• CVE-2010-1849
  MySQL could be tricked to read packets indefinitely if it received a
  packet larger than the maximum size of one packet.
  This results in high CPU usage and thus denial of service conditions.
• CVE-2010-1850
  MySQL was susceptible to a buffer-overflow attack due to a
  failure to perform bounds checking on the table name argument of a
  COM_FIELD_LIST command packet. By sending long data for the table
  name, a buffer is overflown, which could be exploited by an
  authenticated user to inject malicious code.

For the stable distribution (lenny), these problems have been fixed in
version 5.0.51a-24+lenny4

The testing (squeeze) and unstable (sid) distribution do not contain
mysql-dfsg-5.0 anymore.

We recommend that you upgrade your mysql-dfsg-5.0 package.