Ubuntu alert USN-4352-2 (openldap)

From:
             
 
"Leonidas S. Barbosa" <leo.barbosa@canonical.com> 
To:
             
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
             
 
[USN-4352-2] OpenLDAP vulnerability 
Date:
             
 
Wed, 6 May 2020 15:22:39 -0300
Message-ID:
             
 
<20200506182239.GA1218779@d4rkl41n>
==========================================================================
Ubuntu Security Notice USN-4352-2
May 06, 2020

openldap vulnerability
==========================================================================

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

OpenLDAP could be made to crash if it received specially crafted
network traffic.

Software Description:
- openldap: Lightweight Directory Access Protocol

Details:

USN-4352-1 fixed a vulnerability in OpenLDAP. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

 It was discovered that OpenLDAP incorrectly handled certain queries. A
 remote attacker could possibly use this issue to cause OpenLDAP to consume
 resources, resulting in a denial of service.

Update instructions:

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

Ubuntu 14.04 ESM:
  slapd                           2.4.31-1+nmu2ubuntu8.5+esm2

Ubuntu 12.04 ESM:
  slapd                           2.4.28-1.1ubuntu4.10

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/4352-2
  https://usn.ubuntu.com/4352-1
  CVE-2020-12243
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