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[USN-3296-1] Samba vulnerability

Posted on 24 May 2017
Ubuntu Security

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Ubuntu Security Notice USN-3296-1
May 24, 2017

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

- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Samba could be made to run programs as an administrator.

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

Details:

It was discovered that Samba incorrectly handled shared libraries. A remo=
te
attacker could use this flaw to upload a shared library to a writable sha=
re
and execute arbitrary code.

Update instructions:

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

Ubuntu 17.04:
samba 2:4.5.8+dfsg-0ubuntu0.17.04.2

Ubuntu 16.10:
samba 2:4.4.5+dfsg-2ubuntu5.6

Ubuntu 16.04 LTS:
samba 2:4.3.11+dfsg-0ubuntu0.16.04.7

Ubuntu 14.04 LTS:
samba 2:4.3.11+dfsg-0ubuntu0.14.04.8

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


References:
https://www.ubuntu.com/usn/usn-3296-1
CVE-2017-7494

Package Information:
https://launchpad.net/ubuntu/+source/samba/2:4.5.8+dfsg-0ubuntu0.17.04.=
2
https://launchpad.net/ubuntu/+source/samba/2:4.4.5+dfsg-2ubuntu5.6
https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04=
=2E7
https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.14.04=
=2E8



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