SB2022031626 - Red Hat Directory Server 11 update for the redhat-ds:11 module 

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Main Vulnerability Database SB2022031626

SB2022031626 - Red Hat Directory Server 11 update for the redhat-ds:11 module

Published: March 16, 2022

Security Bulletin ID SB2022031626
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
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 2 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2021-4091)

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error when processing virtual attributes context in persistent searches. A remote user can send specially crafted search requests to the directory server, trigger a use-after-free error and crash the server.



2) NULL pointer dereference (CVE-ID: CVE-2021-3514)

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when using a sync_repl client in 389-ds-base. A remote authenticated user can cause a NULL pointer dereference using a specially crafted query and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References