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CESA-2012:0475: tomcat6 security update

Severity CVSS Published Added Modified
5 (AV:N/AC:L/Au:N/C:N/I:N/A:P) January 18, 2012 April 16, 2012 March 07, 2014

Available Exploits 

Description

Updated tomcat6 packages that fix two security issues are now available for CentOS Linux 6. The CentOS 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.

Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies. It was found that the Java hashCode() method implementation was susceptible to predictable hash collisions. A remote attacker could use this flaw to cause Tomcat to use an excessive amount of CPU time by sending an HTTP request with a large number of parameters whose names map to the same hash value. This update introduces a limit on the number of parameters processed per request to mitigate this issue. The default limit is 512 for parameters and 128 for headers. These defaults can be changed by setting the org.apache.tomcat.util.http.Parameters.MAX_COUNT and org.apache.tomcat.util.http.MimeHeaders.MAX_COUNT system properties. (CVE-2011-4858) It was found that Tomcat did not handle large numbers of parameters and large parameter values efficiently. A remote attacker could make Tomcat use an excessive amount of CPU time by sending an HTTP request containing a large number of parameters or large parameter values. This update introduces limits on the number of parameters and headers processed per request to address this issue. Refer to the CVE-2011-4858 description for information about the org.apache.tomcat.util.http.Parameters.MAX_COUNT and org.apache.tomcat.util.http.MimeHeaders.MAX_COUNT system properties. (CVE-2012-0022) CentOS would like to thank oCERT for reporting CVE-2011-4858. oCERT acknowledges Julian Walde and Alexander Klink as the original reporters of CVE-2011-4858. Users of Tomcat should upgrade to these updated packages, which correct these issues. Tomcat must be restarted for this update to take effect.

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References

Solution

  • CentOS Linux >= 6 and < 7 (x86)

    Upgrade tomcat6

    Update tomcat6 to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86)

    Upgrade tomcat6-admin-webapps

    Update tomcat6-admin-webapps to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86)

    Upgrade tomcat6-docs-webapp

    Update tomcat6-docs-webapp to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86)

    Upgrade tomcat6-el-2.1-api

    Update tomcat6-el-2.1-api to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86)

    Upgrade tomcat6-javadoc

    Update tomcat6-javadoc to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86)

    Upgrade tomcat6-jsp-2.1-api

    Update tomcat6-jsp-2.1-api to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86)

    Upgrade tomcat6-lib

    Update tomcat6-lib to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86)

    Upgrade tomcat6-servlet-2.5-api

    Update tomcat6-servlet-2.5-api to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86)

    Upgrade tomcat6-webapps

    Update tomcat6-webapps to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86_64)

    Upgrade tomcat6

    Update tomcat6 to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86_64)

    Upgrade tomcat6-admin-webapps

    Update tomcat6-admin-webapps to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86_64)

    Upgrade tomcat6-docs-webapp

    Update tomcat6-docs-webapp to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86_64)

    Upgrade tomcat6-el-2.1-api

    Update tomcat6-el-2.1-api to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86_64)

    Upgrade tomcat6-javadoc

    Update tomcat6-javadoc to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86_64)

    Upgrade tomcat6-jsp-2.1-api

    Update tomcat6-jsp-2.1-api to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86_64)

    Upgrade tomcat6-lib

    Update tomcat6-lib to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86_64)

    Upgrade tomcat6-servlet-2.5-api

    Update tomcat6-servlet-2.5-api to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

  • CentOS Linux >= 6 and < 7 (x86_64)

    Upgrade tomcat6-webapps

    Update tomcat6-webapps to the latest version available from CentOS, using tools like yum or up2date.

    Because CentOS RPMs are built off of RedHat SRPMs, there is a delay between when a vulnerability is published and fixed in the RedHat SRPMs and the time that CentOS in turn rebuilds and redistributes the updated RPMs. As such, there may be cases where the updated RPM(s) listed here might not exist in the CentOS RPM repositories yet.

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