Scientific Linux Security Update : tomcat6 on SL6.x i386/srpm/x86_64

High Nessus Plugin ID 76450


The remote Scientific Linux host is missing one or more security updates.


It was discovered that Apache Tomcat did not limit the length of chunk sizes when using chunked transfer encoding. A remote attacker could use this flaw to perform a denial of service attack against Tomcat by streaming an unlimited quantity of data, leading to excessive consumption of server resources. (CVE-2014-0075)

It was found that Apache Tomcat did not check for overflowing values when parsing request content length headers. A remote attacker could use this flaw to perform an HTTP request smuggling attack on a Tomcat server located behind a reverse proxy that processed the content length header correctly. (CVE-2014-0099)

It was found that the org.apache.catalina.servlets.DefaultServlet implementation in Apache Tomcat allowed the definition of XML External Entities (XXEs) in provided XSLTs. A malicious application could use this to circumvent intended security restrictions to disclose sensitive information. (CVE-2014-0096)

This update also fixes the following bugs :

- The patch that resolved the CVE-2014-0050 issue contained redundant code. This update removes the redundant code.

- The patch that resolved the CVE-2013-4322 issue contained an invalid check that triggered a while reading trailer headers for chunked requests. This update fixes the check and the aforementioned exception is no longer triggered in the described scenario.

Tomcat must be restarted for this update to take effect.


Update the affected packages.

See Also

Plugin Details

Severity: High

ID: 76450

File Name: sl_20140709_tomcat6_on_SL6_x.nasl

Version: $Revision: 1.3 $

Type: local

Agent: unix

Published: 2014/07/10

Modified: 2015/11/06

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2014/07/09

Reference Information

CVE: CVE-2013-4322, CVE-2014-0050, CVE-2014-0075, CVE-2014-0096, CVE-2014-0099