Here are the details from the Slackware 13.0 ChangeLog:
+--------------------------+
patches/packages/samba-3.2.15-i486-2_slack13.0.txz: Rebuilt.
Patched a buffer overflow in smbd that allows remote attackers to cause
a denial of service (memory corruption and daemon crash) or possibly
execute arbitrary code via a crafted field in a packet.
For more information, see:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2063
(* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

HINT: Getting slow download speeds from ftp.slackware.com?
Give slackware.osuosl.org a try. This is another primary FTP site
for Slackware that can be considerably faster than downloading
directly from ftp.slackware.com.

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating additional FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 10.0:
ftp://ftp.slackware.com/pub/slackware/slackware-10.0/patches/packages/samba-3.0.37-i486-2_slack10.0.tgz

Updated package for Slackware 10.1:
ftp://ftp.slackware.com/pub/slackware/slackware-10.1/patches/packages/samba-3.0.37-i486-2_slack10.1.tgz

Updated package for Slackware 10.2:
ftp://ftp.slackware.com/pub/slackware/slackware-10.2/patches/packages/samba-3.0.37-i486-2_slack10.2.tgz

Updated package for Slackware 11.0:
ftp://ftp.slackware.com/pub/slackware/slackware-11.0/patches/packages/samba-3.0.37-i486-2_slack11.0.tgz

Updated package for Slackware 12.0:
ftp://ftp.slackware.com/pub/slackware/slackware-12.0/patches/packages/samba-3.0.37-i486-2_slack12.0.tgz

Updated package for Slackware 12.1:
ftp://ftp.slackware.com/pub/slackware/slackware-12.1/patches/packages/samba-3.0.37-i486-2_slack12.1.tgz

Updated package for Slackware 12.2:
ftp://ftp.slackware.com/pub/slackware/slackware-12.2/patches/packages/samba-3.2.15-i486-2_slack12.2.tgz

Updated package for Slackware 13.0:
ftp://ftp.slackware.com/pub/slackware/slackware-13.0/patches/packages/samba-3.2.15-i486-2_slack13.0.txz

Updated package for Slackware x86_64 13.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-13.0/patches/packages/samba-3.2.15-x86_64-2_slack13.0.txz


MD5 signatures:
+-------------+

Slackware 10.0 package:
10a993bff58438b18bddd294cc725a41 samba-3.0.37-i486-2_slack10.0.tgz

Slackware 10.1 package:
225648b0ab9e1a4ecc222d1024d4288a samba-3.0.37-i486-2_slack10.1.tgz

Slackware 10.2 package:
8913ff3bf21984f56af81919e0fac4f4 samba-3.0.37-i486-2_slack10.2.tgz

Slackware 11.0 package:
1e0d6af565abe474a5bfc1714f2573ab samba-3.0.37-i486-2_slack11.0.tgz

Slackware 12.0 package:
cbac23dd62fb2acd49bf456b4d89146f samba-3.0.37-i486-2_slack12.0.tgz

Slackware 12.1 package:
ea0b7fa2a0bff911c4826b3265afa66a samba-3.0.37-i486-2_slack12.1.tgz

Slackware 12.2 package:
bb15e8c8ab8d21974e8b9322d9c9b254 samba-3.2.15-i486-2_slack12.2.tgz

Slackware 13.0 package:
9128f7e9777d0bc6494ea967d839b0c0 samba-3.2.15-i486-2_slack13.0.txz

Slackware x86_64 13.0 package:
ea5bbde1ad107f92585429e3cb40a434 samba-3.2.15-x86_64-2_slack13.0.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg samba-3.2.15-i486-2_slack13.0.txz

Then, restart samba.