USN-3976-1: 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
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 19.04
Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-3976-2: libwbclient-dev, libpam-smbpass, libpam-winbind, python-samba, samba-doc-pdf, libsmbsharemodes0, samba-vfs-modules, samba-doc, libwbclient0, samba-tools, samba-dsdb-modules, samba-common-bin, samba-common, samba-testsuite, libparse-pidl-perl, winbind, libnss-winbind, samba, samba-libs, registry-tools, libsmbclient-dev, samba-dev, libsmbclient, libsmbsharemodes-dev, smbclient, swat
- USN-5675-1: libroken18-heimdal, heimdal-kdc, libsl0-heimdal, libhcrypto4-heimdal, libkafs0-heimdal, libwind0-heimdal, heimdal-servers, heimdal-clients-x, heimdal, heimdal-multidev, libhdb9-heimdal, heimdal-servers-x, libhx509-5-heimdal, libkadm5srv8-heimdal, libkadm5clnt7-heimdal, libasn1-8-heimdal, heimdal-docs, libheimntlm0-heimdal, heimdal-dev, heimdal-kcm, libkdc2-heimdal, libgssapi3-heimdal, libotp0-heimdal, heimdal-clients, libheimbase1-heimdal, libkrb5-26-heimdal