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USN-544-1: Samba vulnerabilities

16 November 2007

Samba vulnerabilities




Samba developers discovered that nmbd could be made to overrun a buffer
during the processing of GETDC logon server requests. When samba is
configured as a Primary or Backup Domain Controller, a remote attacker
could send malicious logon requests and possibly cause a denial of
service. (CVE-2007-4572)

Alin Rad Pop of Secunia Research discovered that nmbd did not properly
check the length of netbios packets. When samba is configured as a WINS
server, a remote attacker could send multiple crafted requests resulting
in the execution of arbitrary code with root privileges. (CVE-2007-5398)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 7.10
Ubuntu 7.04
Ubuntu 6.10
Ubuntu 6.06

In general, a standard system upgrade is sufficient to effect the
necessary changes.

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