USN-3976-2: Samba vulnerability
14 May 2019
Samba could allow unintended access to network services.
Releases
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
Ubuntu 12.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-3976-1: samba, smbclient, samba-libs, libsmbclient, python3-samba, samba-dsdb-modules, samba-testsuite, registry-tools, winbind, samba-common, libparse-pidl-perl, libpam-winbind, ctdb, libwbclient-dev, samba-vfs-modules, python-samba, libsmbclient-dev, samba-common-bin, samba-dev, libwbclient0, libnss-winbind
- USN-5675-1: libhx509-5-heimdal, heimdal-multidev, libgssapi3-heimdal, libhcrypto4-heimdal, libsl0-heimdal, heimdal-servers, heimdal-dev, heimdal-kdc, libasn1-8-heimdal, heimdal-clients-x, libheimntlm0-heimdal, heimdal-clients, libkdc2-heimdal, libroken18-heimdal, libkafs0-heimdal, heimdal, libkadm5clnt7-heimdal, libhdb9-heimdal, heimdal-servers-x, libotp0-heimdal, libkrb5-26-heimdal, libheimbase1-heimdal, heimdal-docs, libwind0-heimdal, heimdal-kcm, libkadm5srv8-heimdal