FreeTDS: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.4037
                     USN-4173-1: FreeTDS vulnerability
                              31 October 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           FreeTDS
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-13508  

Original Bulletin: 
   https://usn.ubuntu.com/4173-1/

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running FreeTDS check for an updated version of the software for 
         their operating system.

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USN-4173-1: FreeTDS vulnerability
30 October 2019

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

  o Ubuntu 19.10
  o Ubuntu 19.04
  o Ubuntu 18.04 LTS

Summary

FreeTDS could be made to crash or run programs if it received specially crafted
network traffic.

Software Description

  o freetds - libraries for connecting to MS SQL and Sybase SQL servers

Details

Felix Wilhelm discovered that FreeTDS incorrectly handled certain types after a
protocol downgrade. A remote attacker could use this issue to cause FreeTDS to
crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 19.10
    freetds-bin - 1.1.6-1ubuntu0.1
    libct4 - 1.1.6-1ubuntu0.1
    libsybdb5 - 1.1.6-1ubuntu0.1
    tdsodbc - 1.1.6-1ubuntu0.1
Ubuntu 19.04
    freetds-bin - 1.00.104-1ubuntu0.1
    libct4 - 1.00.104-1ubuntu0.1
    libsybdb5 - 1.00.104-1ubuntu0.1
    tdsodbc - 1.00.104-1ubuntu0.1
Ubuntu 18.04 LTS
    freetds-bin - 1.00.82-2ubuntu0.1
    libct4 - 1.00.82-2ubuntu0.1
    libsybdb5 - 1.00.82-2ubuntu0.1
    tdsodbc - 1.00.82-2ubuntu0.1

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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

References

  o CVE-2019-13508

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