USN-375-1: PHP vulnerability

3 November 2006

PHP vulnerability

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Details

Stefan Esser discovered two buffer overflows in the htmlentities() and
htmlspecialchars() functions. By supplying specially crafted input to
PHP applications which process that input with these functions, a
remote attacker could potentially exploit this to execute arbitrary
code with the privileges of the application. (CVE-2006-5465)

This update also fixes bugs in the chdir() and tempnam() functions,
which did not perform proper open_basedir checks. This could allow
local scripts to bypass intended restrictions.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 6.10
  • php5-cli - 5.1.6-1ubuntu2.1
  • libapache2-mod-php5 - 5.1.6-1ubuntu2.1
Ubuntu 6.06
  • php5-cli - 5.1.2-1ubuntu3.4
  • libapache2-mod-php5 - 5.1.2-1ubuntu3.4
Ubuntu 5.10
  • php5-cli - 5.0.5-2ubuntu1.6
  • libapache2-mod-php5 - 5.0.5-2ubuntu1.6

In general, a standard system upgrade is sufficient to effect the
necessary changes.

References

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