USN-66-2: PHP vulnerability

Releases

• Ubuntu 4.10

Details

Ubuntu Security Notice USN-66-1 described a circumvention of the
"open_basedir" restriction by using the cURL module. Adam Conrad
discovered that the fix from USN-66-1 still allowed to bypass this
restriction with certain variants of path specifications.

In addition this update fixes the crash of the PHP interpreter if
curl_init() was called without parameters.

For reference, this is the relevant part of the original advisory:

FraMe from kernelpanik.org reported that the cURL module does not
respect open_basedir restrictions. As a result, scripts which used
cURL to open files with an user-specified path could read arbitrary
local files outside of the open_basedir directory.

Update instructions

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

Ubuntu 4.10

• libapache2-mod-php4 -
• php4-cgi -
• php4-curl -

In general, a standard system update will make all the necessary changes.

References

• http://www.securitytracker.com/alerts/2004/Oct/1011984.html