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Moderate Security Update for Red Hat Enterprise Linux 5 on php53 Advisory

red hat
Calendar Grey February 3, 2011
Scroller Redhat Esm H88
The recent php53 update for Red Hat addresses three security issues, enhancing system protection against attacks.
Updated php53 packages that fix three security issues are now available for Red Hat Enterprise Linux 5

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.
A flaw was found in the way PHP converted certain floating point values from string representation to a number. If a PHP script evaluated an attacker's input in a numeric context, the PHP interpreter could cause high CPU usage until the script execution time limit is reached. This issue only affected i386 systems. (CVE-2010-4645)
A stack memory exhaustion flaw was found in the way the PHP filter_var() function validated email addresses. An attacker could use this flaw to crash the PHP interpreter by providing excessively long input to be validated as an email address. (CVE-2010-3710)
A memory disclosure flaw was found in the PHP multi-byte string extension. If the mb_strcut() function was called with a length argument exceeding the input string size, the function could disclose a portion of the PHP interpreter's memory. (CVE-2010-4156)
All php53 users should upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

Topics%20covered

Topics Covered

security advisory moderate Red Hat DoS information disclosure php53

References

https://access.redhat.com/security/cve/CVE-2010-3710 https://access.redhat.com/security/cve/CVE-2010-4156 https://access.redhat.com/security/cve/CVE-2010-4645 https://access.redhat.com/security/updates/classification#moderate

Package List

RHEL Desktop Workstation (v. 5 client):
Source:
i386: php53-5.3.3-1.el5_6.1.i386.rpm php53-bcmath-5.3.3-1.el5_6.1.i386.rpm php53-cli-5.3.3-1.el5_6.1.i386.rpm php53-common-5.3.3-1.el5_6.1.i386.rpm php53-dba-5.3.3-1.el5_6.1.i386.rpm php53-debuginfo-5.3.3-1.el5_6.1.i386.rpm php53-devel-5.3.3-1.el5_6.1.i386.rpm php53-gd-5.3.3-1.el5_6.1.i386.rpm php53-imap-5.3.3-1.el5_6.1.i386.rpm php53-intl-5.3.3-1.el5_6.1.i386.rpm php53-ldap-5.3.3-1.el5_6.1.i386.rpm php53-mbstring-5.3.3-1.el5_6.1.i386.rpm php53-mysql-5.3.3-1.el5_6.1.i386.rpm php53-odbc-5.3.3-1.el5_6.1.i386.rpm php53-pdo-5.3.3-1.el5_6.1.i386.rpm php53-pgsql-5.3.3-1.el5_6.1.i386.rpm php53-process-5.3.3-1.el5_6.1.i386.rpm php53-pspell-5.3.3-1.el5_6.1.i386.rpm php53-snmp-5.3.3-1.el5_6.1.i386.rpm php53-soap-5.3.3-1.el5_6.1.i386.rpm php53-xml-5.3.3-1.el5_6.1.i386.rpm php53-xmlrpc-5.3.3-1.el5_6.1.i386.rpm
x86_64: php53-5.3.3-1.el5_6.1.x86_64.rpm php53-bcmath-5.3.3-1.el5_6.1.x86_64.rpm php53-cli-5.3.3-1.el5_6.1.x86_64.rpm php53-common-5.3.3-1.el5_6.1.x86_64.rpm php53-dba-5.3.3-1.el5_6.1.x86_64.rpm php53-debuginfo-5.3.3-1.el5_6.1.x86_64.rpm php53-devel-5.3.3-1.el5_6.1.x86_64.rpm php53-gd-5.3.3-1.el5_6.1.x86_64.rpm php53-imap-5.3.3-1.el5_6.1.x86_64.rpm php53-intl-5.3.3-1.el5_6.1.x86_64.rpm php53-ldap-5.3.3-1.el5_6.1.x86_64.rpm

Read the Full Advisory


Severity
moderate
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2011:0196-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0196.html
Issue date: 2011-02-03

Topic

Updated php53 packages that fix three security issues are now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat DoS information disclosure php53

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Bugs Fixed

646684 - CVE-2010-3710 php: DoS in filter_var() via long email string

651682 - CVE-2010-4156 php information disclosure via mb_strcut()

667806 - CVE-2010-4645 php: hang on numeric value 2.2250738585072011e-308 with x87 fpu

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