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Ubuntu Security Notice USN-3519-1

Ubuntu Security Notice USN-3519-1
Posted Jan 9, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3519-1 - It was discovered that Tomcat incorrectly handled certain pipelined requests when sendfile was used. A remote attacker could use this issue to obtain wrong responses possibly containing sensitive information. It was discovered that Tomcat incorrectly used the appropriate facade object. A malicious application could possibly use this to bypass Security Manager restrictions. Various other issues were also addressed.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2017-5647, CVE-2017-5648, CVE-2017-5664, CVE-2017-7674
SHA-256 | 38382610e11f924ba68fd9e1ac30126f36e4138680f20e49f3193dccf7392465

Ubuntu Security Notice USN-3519-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3519-1
January 08, 2018

tomcat7, tomcat8 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Tomcat.

Software Description:
- tomcat8: Servlet and JSP engine
- tomcat7: Servlet and JSP engine

Details:

It was discovered that Tomcat incorrectly handled certain pipelined
requests when sendfile was used. A remote attacker could use this issue to
obtain wrong responses possibly containing sensitive information.
(CVE-2017-5647)

It was discovered that Tomcat incorrectly used the appropriate facade
object. A malicious application could possibly use this to bypass Security
Manager restrictions. (CVE-2017-5648)

It was discovered that Tomcat incorrectly handled error pages. A remote
attacker could possibly use this issue to replace or remove the custom
error page. (CVE-2017-5664)

It was discovered that Tomcat incorrectly handled the CORS filter. A remote
attacker could possibly use this issue to perform cache poisoning.
(CVE-2017-7674)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 17.04:
libtomcat8-java 8.0.38-2ubuntu2.2
tomcat8 8.0.38-2ubuntu2.2

Ubuntu 16.04 LTS:
libtomcat8-java 8.0.32-1ubuntu1.5
tomcat8 8.0.32-1ubuntu1.5

Ubuntu 14.04 LTS:
libtomcat7-java 7.0.52-1ubuntu0.13
tomcat7 7.0.52-1ubuntu0.13

In general, a standard system update will make all the necessary changes.

References:
https://www.ubuntu.com/usn/usn-3519-1
CVE-2017-5647, CVE-2017-5648, CVE-2017-5664, CVE-2017-7674

Package Information:
https://launchpad.net/ubuntu/+source/tomcat8/8.0.38-2ubuntu2.2
https://launchpad.net/ubuntu/+source/tomcat8/8.0.32-1ubuntu1.5
https://launchpad.net/ubuntu/+source/tomcat7/7.0.52-1ubuntu0.13


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