sudo - several vulnerabilities

Several vulnerabilities have been discovered in sudo, a program
designed to allow a sysadmin to give limited root privileges to users.
The Common Vulnerabilities and Exposures project identifies the
following problems:

• CVE-2010-0426
  It was discovered that sudo when a pseudo-command is enabled, permits a
  match between the name of the pseudo-command and the name of an
  executable file in an arbitrary directory, which allows local users to
  gain privileges via a crafted executable file.
• CVE-2010-0427
  It was discovered that sudo when the runas_default option is used, does
  not properly set group memberships, which allows local users to gain privileges
  via a sudo command.

For the stable distribution (lenny), these problems have been fixed in
version 1.6.9p17-2+lenny1

For the unstable distribution (sid), these problems have been fixed in
version 1.7.2p1-1.2, and will migrate to the testing distribution (squeeze)
shortly.

We recommend that you upgrade your sudo package.