SB2020010323 - Off-by-one in OpenLDAP



SB2020010323 - Off-by-one in OpenLDAP

Published: January 3, 2020 Updated: August 8, 2020

Security Bulletin ID SB2020010323
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Off-by-one (CVE-ID: CVE-2014-8182)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

An off-by-one error leading to a crash was discovered in openldap 2.4 when processing DNS SRV messages. If slapd was configured to use the dnssrv backend, an attacker could crash the service with crafted DNS responses.


Remediation

Install update from vendor's website.