Updated PHP packages that fix multiple security issues are now
available.
PHP is an HTML-embedded scripting language commonly used with the Apache
HTTP Web server.
2. Relevant releases/architectures:
Red Hat Linux 7.3 - i386
Red Hat Linux 9 - i386
Fedora Core 1 - i386
Fedora Core 2 - i386
Fedora Core 3 - i386, x86_64
3. Problem description:
A buffer overflow flaw was discovered in uw-imap, the University of
Washington's IMAP Server. php-imap is compiled against the static
c-client libraries from imap and therefore needed to be recompiled
against the fixed version. (CVE-2005-2933).
An input validation error was found in the "mb_send_mail()" function. An
attacker could use this flaw to inject arbitrary headers in a mail sent
via a script calling the "mb_send_mail()" function where the "To"
parameter can be controlled by the attacker. (CVE-2005-3883)
The error handling output was found to not properly escape HTML output
in certain cases. An attacker could use this flaw to perform cross-site
scripting attacks against sites where both display_errors and
html_errors are enabled. (CVE-2006-0208)
The phpinfo() PHP function did not properly sanitize long strings. An
attacker could use this to perform cross-site scripting attacks against
sites that have publicly-available PHP scripts that call phpinfo().
(CVE-2006-0996)
The html_entity_decode() PHP function was found to not be binary safe.
An attacker could use this flaw to disclose a certain part of the
memory. In order for this issue to be exploitable the target site would
need to have a PHP script which called the "html_entity_decode()"
function with untrusted input from the user and displayed the result.
(CVE-2006-1490)
The wordwrap() PHP function did not properly check for integer overflow
in the handling of the "break" parameter. An attacker who could control
the string passed to the "break" parameter could cause a heap overflow.
(CVE-2006-1990)
Users of PHP should upgrade to these updated packages, which contain
backported patches that resolve these issues.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
To update all RPMs for your particular architecture, run:
rpm -Fvh [filenames]
where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which
are not installed but included in the list will not be updated. Note
that you can also use wildcards (*.rpm) if your current directory *only*
contains the desired RPMs.
Please note that this update is also available via yum and apt. Many
people find this an easier way to apply updates. To use yum issue:
yum update
or to use apt:
apt-get update; apt-get upgrade
This will start an interactive process that will result in the
appropriate RPMs being upgraded on your system. This assumes that you
have yum or apt-get configured for obtaining Fedora Legacy content.
Please visit http://www.fedoralegacy.org/docs for directions on how to
configure yum and apt-get.
