USN-3426-2: Samba vulnerabilities

USN-3426-2: Samba vulnerabilities

Ubuntu Security Notice USN-3426-2

2nd November, 2017

samba vulnerabilities

A security issue affects these releases of Ubuntu and its
derivatives:

• Ubuntu 12.04 LTS

Summary

Several security issues were fixed in XXX-APP-XXX.

Software description

• samba
  – SMB/CIFS file, print, and login server for Unix

Details

USN-3426-1 fixed several vulnerabilities in Samba. This update
provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Stefan Metzmacher discovered that Samba incorrectly enforced SMB signing in
certain situations. A remote attacker could use this issue to perform a man
in the middle attack. (CVE-2017-12150)

Yihan Lian and Zhibin Hu discovered that Samba incorrectly handled memory
when SMB1 is being used. A remote attacker could possibly use this issue to
obtain server memory contents. (CVE-2017-12163)

Update instructions

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

Ubuntu 12.04 LTS:

samba

2:3.6.25-0ubuntu0.12.04.13

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2017-12150,

CVE-2017-12163

Source: USN-3426-2: Samba vulnerabilities