USN-2856-1: ldb vulnerabilities

5 January 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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References