Ubuntu 15.10: 2856-1 Critical: ldb Denial of Service Threat

ubuntu

January 5, 2016

Several security issues were fixed in ldb.

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)

Topics Covered

security advisory denial of service critical Ubuntu software issue ldb info access

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.