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