==========================================================================
Ubuntu Security Notice USN-4173-1
October 30, 2019
freetds vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 19.10
– Ubuntu 19.04
– Ubuntu 18.04 LTS
Summary:
FreeTDS could be made to crash or run programs if it received specially
crafted network traffic.
Software Description:
– 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
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4173-1
CVE-2019-13508
Package Information:
https://launchpad.net/ubuntu/+source/freetds/1.1.6-1ubuntu0.1
https://launchpad.net/ubuntu/+source/freetds/1.00.104-1ubuntu0.1
https://launchpad.net/ubuntu/+source/freetds/1.00.82-2ubuntu0.1
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