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: libpam-smbpass, samba-vfs-modules, samba-dev, samba-dsdb-modules, libpam-winbind, libwbclient0, smbclient, samba-common-bin, registry-tools, libnss-winbind, winbind, libsmbclient, samba-tools, samba, libwbclient-dev, libsmbsharemodes-dev, samba-doc-pdf, libsmbclient-dev, python-samba, samba-libs, libsmbsharemodes0, samba-common, libparse-pidl-perl, swat, samba-testsuite, samba-doc
- USN-5675-1: libgssapi3-heimdal, libkdc2-heimdal, heimdal-clients-x, libhcrypto4-heimdal, libhdb9-heimdal, libkrb5-26-heimdal, heimdal-kcm, heimdal-servers-x, libheimbase1-heimdal, libasn1-8-heimdal, heimdal-kdc, heimdal-multidev, libsl0-heimdal, libheimntlm0-heimdal, libkadm5clnt7-heimdal, libkafs0-heimdal, libwind0-heimdal, heimdal-docs, heimdal-dev, heimdal-clients, libhx509-5-heimdal, heimdal, libkadm5srv8-heimdal, heimdal-servers, libotp0-heimdal, libroken18-heimdal