Ubuntu Security Update USN-3486-1: Samba vulnerabilities

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Ubuntu Security Notice USN-3486-1


21st November, 2017

samba vulnerabilities


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

• Ubuntu 17.10
• Ubuntu 17.04
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary


Several security issues were fixed in Samba.

Software description

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

Details


Yihan Lian and Zhibin Hu discovered that Samba incorrectly handled memory
when processing certain SMB1 requests. A remote attacker could possibly use
this issue to execute arbitrary code. (CVE-2017-14746)

Volker Lendecke discovered that Samba incorrectly cleared memory when
returning data to a client. A remote attacker could possibly use this issue
to obtain sensitive information. (CVE-2017-15275)

Update instructions


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

Ubuntu 17.10:
samba 2:4.6.7+dfsg-1ubuntu3.1
Ubuntu 17.04:
samba 2:4.5.8+dfsg-0ubuntu0.17.04.8
Ubuntu 16.04 LTS:
samba 2:4.3.11+dfsg-0ubuntu0.16.04.12
Ubuntu 14.04 LTS:
samba 2:4.3.11+dfsg-0ubuntu0.14.04.13

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-2017-14746, CVE-2017-15275

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