USN-3976-2: Samba vulnerability

Releases

• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

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

Details

USN-3976-1 fixed a vulnerability in Samba. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

Isaac Boukris and Andrew Bartlett discovered that Samba incorrectly checked
S4U2Self packets. In certain environments, a remote attacker could possibly
use this issue to escalate privileges.

Update instructions

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

Ubuntu 14.04

• samba - 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm1

Ubuntu 12.04

• samba - 2:3.6.25-0ubuntu0.12.04.18

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

References

• CVE-2018-16860

Related notices

• USN-3976-1: libwbclient0, samba, smbclient, samba-dev, libwbclient-dev, winbind, samba-vfs-modules, ctdb, samba-common, samba-libs, registry-tools, libnss-winbind, libsmbclient, libpam-winbind, python3-samba, libsmbclient-dev, python-samba, samba-testsuite, samba-common-bin, samba-dsdb-modules, libparse-pidl-perl
• USN-5675-1: libheimntlm0-heimdal, libsl0-heimdal, libheimbase1-heimdal, heimdal-kdc, heimdal, libasn1-8-heimdal, libkadm5srv8-heimdal, libhcrypto4-heimdal, libkdc2-heimdal, heimdal-kcm, heimdal-dev, libkafs0-heimdal, heimdal-clients, libotp0-heimdal, heimdal-docs, libwind0-heimdal, libhx509-5-heimdal, libhdb9-heimdal, libkrb5-26-heimdal, libroken18-heimdal, heimdal-servers, libkadm5clnt7-heimdal, heimdal-multidev, libgssapi3-heimdal, heimdal-clients-x, heimdal-servers-x