Referenced CVEs:
CVE-2007-6015
Description:
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Ubuntu Security Notice USN-556-1 December 18, 2007
samba vulnerability
CVE-2007-6015
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A security issue affects the following Ubuntu releases:
Ubuntu 6.06 LTS
Ubuntu 6.10
Ubuntu 7.04
Ubuntu 7.10
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 6.06 LTS:
libsmbclient 3.0.22-1ubuntu3.6
samba 3.0.22-1ubuntu3.6
Ubuntu 6.10:
libsmbclient 3.0.22-1ubuntu4.5
samba 3.0.22-1ubuntu4.5
Ubuntu 7.04:
libsmbclient 3.0.24-2ubuntu1.5
samba 3.0.24-2ubuntu1.5
Ubuntu 7.10:
libsmbclient 3.0.26a-1ubuntu2.3
samba 3.0.26a-1ubuntu2.3
In general, a standard system upgrade is sufficient to effect the
necessary changes.
Details follow:
Alin Rad Pop discovered that Samba did not correctly check the size
of reply packets to mailslot requests. If a server was configured
with domain logon enabled, an unauthenticated remote attacker could send
a specially crafted domain logon packet and execute arbitrary code or
crash the Samba service. By default, domain logon is disabled in Ubuntu.



