Issued:

2014-04-23

Updated:

2014-04-23

RHSA-2014:0429 - Moderate: tomcat6 security update

Synopsis

Moderate: tomcat6 security update

Type/Severity

Security Advisory Moderate

Topic

Updated tomcat6 packages that fix three security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Description

Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.

It was found that when Tomcat processed a series of HTTP requests in which at least one request contained either multiple content-length headers, or one content-length header with a chunked transfer-encoding header, Tomcat would incorrectly handle the request. A remote attacker could use this flaw to poison a web cache, perform cross-site scripting (XSS) attacks, or obtain sensitive information from other requests. (CVE-2013-4286)

It was discovered that the fix for CVE-2012-3544 did not properly resolve a denial of service flaw in the way Tomcat processed chunk extensions and trailing headers in chunked requests. A remote attacker could use this flaw to send an excessively long request that, when processed by Tomcat, could consume network bandwidth, CPU, and memory on the Tomcat server. Note that chunked transfer encoding is enabled by default. (CVE-2013-4322)

A denial of service flaw was found in the way Apache Commons FileUpload handled small-sized buffers used by MultipartStream. A remote attacker could use this flaw to create a malformed Content-Type header for a multipart request, causing JBoss Web to enter an infinite loop when processing such an incoming request. (CVE-2014-0050)

All Tomcat users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. Tomcat must be restarted for this update to take effect.

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 https://access.redhat.com/site/articles/11258

Affected Products

Updated Packages

• tomcat6-el-2.1-api-6.0.24-64.el6_5.noarch.rpm
• tomcat6-javadoc-6.0.24-64.el6_5.noarch.rpm
• tomcat6-servlet-2.5-api-6.0.24-64.el6_5.noarch.rpm
• tomcat6-6.0.24-64.el6_5.noarch.rpm
• tomcat6-docs-webapp-6.0.24-64.el6_5.noarch.rpm
• tomcat6-admin-webapps-6.0.24-64.el6_5.noarch.rpm
• tomcat6-lib-6.0.24-64.el6_5.noarch.rpm
• tomcat6-6.0.24-64.el6_5.src.rpm
• tomcat6-webapps-6.0.24-64.el6_5.noarch.rpm
• tomcat6-jsp-2.1-api-6.0.24-64.el6_5.noarch.rpm

Fixes

• This content is not included.BZ - 1062337
• This content is not included.BZ - 1069905
• This content is not included.BZ - 1069921

CVEs

• CVE-2014-0050
• CVE-2013-4286
• CVE-2013-4322

References

• https://access.redhat.com/security/updates/classification/#moderate
• Content from tomcat.apache.org is not included.Content from tomcat.apache.org is not included.https://tomcat.apache.org/security-6.html

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.