USN-544-1: Samba vulnerabilities

Releases

• Ubuntu 7.10
• Ubuntu 7.04
• Ubuntu 6.10
• Ubuntu 6.06

Packages

• samba -

Details

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

• samba - 3.0.26a-1ubuntu2.1

Ubuntu 7.04

• samba - 3.0.24-2ubuntu1.3

Ubuntu 6.10

• samba - 3.0.22-1ubuntu4.3

Ubuntu 6.06

• samba - 3.0.22-1ubuntu3.4

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

References

• CVE-2007-4572
• CVE-2007-5398

Related notices

• USN-544-2: samba
• USN-617-1: libsmbclient, samba