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Ubuntu Security Notice USN-2856-1
January 05, 2016

ldb vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.10
- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in ldb.

Software Description:
- ldb: LDAP-like embedded database

Details:

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.
(CVE-2015-3223)

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.
(CVE-2015-5330)

Update instructions:

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

Ubuntu 15.10:
  libldb1                         2:1.1.20-2ubuntu0.1

Ubuntu 15.04:
  libldb1                         1:1.1.18-1ubuntu0.1

Ubuntu 14.04 LTS:
  libldb1                         1:1.1.16-1ubuntu0.1

Ubuntu 12.04 LTS:
  libldb1                         1:1.1.4-1ubuntu0.1

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

References:
  http://www.ubuntu.com/usn/usn-2856-1
  CVE-2015-3223, CVE-2015-5330

Package Information:
  https://launchpad.net/ubuntu/+source/ldb/2:1.1.20-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/ldb/1:1.1.18-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/ldb/1:1.1.16-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/ldb/1:1.1.4-1ubuntu0.1