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Ubuntu Security Notice USN-4173-1

Ubuntu Security Notice USN-4173-1
Posted Oct 31, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4173-1 - 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.

tags | advisory, remote, denial of service, arbitrary, protocol
systems | linux, ubuntu
advisories | CVE-2019-13508
SHA-256 | 249a5647bac6baba060acea4c6d26f95b420042b9d301e0d524db8fde562d0e8

Ubuntu Security Notice USN-4173-1

Change Mirror Download
==========================================================================
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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