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Debian 4.0 Etch DSA-1617-1 Moderate: Fix For Named_t UDP Binding

debian
Calendar Grey July 25, 2008
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Debian Security Notice DSA-1618-2 outlines the corrective measures taken regarding sshd processes and their permissions to listen on specific TCP ports following the upgrade.
In DSA-1603-1, Debian released an update to the BIND 9 domain name server, which introduced UDP source port randomization to mitigate the threat of DNS cache poisoning attacks (i...

Summary


Because the Debian refpolicy packages are not yet designed with
policy module upgradeability in mind, and because SELinux-enabled
Debian systems often have some degree of site-specific policy
customization, it is difficult to assure that the new bind policy can
be successfully upgraded. To this end, the package upgrade will not
abort if the bind policy update fails. The new policy module can be
found at /usr/share/selinux/refpolicy-targeted/bind.pp after
installation. Administrators wishing to use the bind service policy
can reconcile any policy incompatibilities and install the upgrade
manually thereafter. A more detailed discussion of the corrective
procedure may be found here:

https://wiki.debian.org/SELinux/Issues/BindPortRandomization

For the stable distribution (etch), this problem has been fixed in
version 0.0.20061018-5.1+etch1. The unstable distribution (sid) is
not affected, as subsequent refpolicy releases have incorporated an
analogous change.

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