USN-4173-1: FreeTDS vulnerability

Releases

• Ubuntu 19.10
• Ubuntu 19.04
• Ubuntu 18.04 ESM

Packages

• 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

• 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

• CVE-2019-13508