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USN-3827-2: Samba vulnerabilities

27 November 2018

Several security issues were fixed in Samba.

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Releases

Packages

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

Details

USN-3827-1 fixed a vulnerability in samba. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Florian Stuelpner discovered that Samba incorrectly handled CNAME records.
A remote attacker could use this issue to cause Samba to crash, resulting
in a denial of service. (CVE-2018-14629)

Alex MacCuish discovered that Samba incorrectly handled memory when
configured to accept smart-card authentication. A remote attacker could
possibly use this issue to cause Samba to crash, resulting in a denial of
service. (CVE-2018-16841)

Garming Sam discovered that Samba incorrectly handled memory when
processing LDAP searches. A remote attacker could possibly use this issue
to cause Samba to crash, resulting in a denial of service. (CVE-2018-16851)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 12.04

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

Related notices

  • USN-3827-1: samba-testsuite, smbclient, python-samba, samba-vfs-modules, libnss-winbind, samba, libparse-pidl-perl, samba-doc, libpam-winbind, samba-common-bin, libsmbsharemodes0, libsmbclient, libwbclient0, samba-dev, samba-libs, samba-common, winbind, libsmbsharemodes-dev, libpam-smbpass, libwbclient-dev, libsmbclient-dev, ctdb, registry-tools, samba-dsdb-modules