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Alerts This Week
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Ubuntu 12.04 LTS USN-2950-4 Critical: Samba Network Issue

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Calendar Grey May 18, 2016
Scroller Ubuntu
=========================================================================Ubuntu Security Notice USN-
USN-2950-1 introduced regressions in Samba.

Summary

USN-2950-1 introduced regressions in Samba.

Software Description:

- samba: SMB/CIFS file, print, and login server for Unix

Details:

USN-2950-1 fixed vulnerabilities in Samba. The backported fixes introduced

in Ubuntu 12.04 LTS caused interoperability issues. This update fixes

compatibility with certain NAS devices, and allows connecting to Samba 3.6

servers by relaxing the "client ipc signing" parameter to "auto".

We apologize for the inconvenience.

Original advisory details:

Jouni Knuutinen discovered that Samba contained multiple flaws in the

DCE/RPC implementation. A remote attacker could use this issue to perform

a denial of service, downgrade secure connections by performing a man in

the middle attack, or possibly execute arbitrary code. (CVE-2015-5370)

Stefan Metzmacher discovered that Samba contained multiple flaws in the

NTLMSSP authentication implementation. A remote attacker could use this

issue to downgrade connections to plain text b...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory DoS samba Ubuntu interoperability regression network issue

Update Instructions

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

Ubuntu 12.04 LTS:
  samba                           2:3.6.25-0ubuntu0.12.04.4

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-2950-4

https://ubuntu.com/security/notices/USN-2950-1

https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1574403, https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1576109

Severity
critical
Lowest
Low
Medium
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Critical

May 18, 2016

Topics%20covered

Topics Covered

security advisory DoS samba Ubuntu interoperability regression network issue

Package Information

https://launchpad.net/ubuntu/+source/samba/2:3.6.25-0ubuntu0.12.04.4

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