USN-3827-2: Samba vulnerabilities

Releases

• Ubuntu 12.04

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)

Update instructions

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

Ubuntu 12.04

• samba - 2:3.6.25-0ubuntu0.12.04.16

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

References

• CVE-2018-14629
• CVE-2018-16841
• CVE-2018-16851

Related notices

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