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USN-2856-1: ldb vulnerabilities

5 January 2016

Several security issues were fixed in ldb.



  • ldb - LDAP-like embedded database


Thilo Uttendorfer discovered that the ldb incorrectly handled certain zero
values. A remote attacker could use this issue to cause applications using
ldb, such as Samba, to stop responding, resulting in a denial of service.

Douglas Bagnall discovered that ldb incorrectly handled certain string
lengths. A remote attacker could use this issue to possibly access
sensitive information from memory of applications using ldb, such as Samba.

Update instructions

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

Ubuntu 15.10
Ubuntu 15.04
Ubuntu 14.04
Ubuntu 12.04

After a standard system update you need to restart applications using ldb,
such as Samba, to make all the necessary changes.

Related notices

  • USN-2855-1: winbind, samba, libsmbsharemodes-dev, samba-vfs-modules, samba-doc, libwbclient-dev, libsmbclient-dev, samba-dsdb-modules, libpam-winbind, libsmbclient, samba-libs, samba-testsuite, libwbclient0, samba-dev, libsmbsharemodes0, smbclient, samba-common, libnss-winbind, python-samba, registry-tools, libparse-pidl-perl, libpam-smbpass, samba-common-bin