SB2022041928 - Red Hat Enterprise Linux 8.4 update for the 389-ds:1.4 module
Published: April 19, 2022
Security Bulletin ID
SB2022041928
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
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.
Remediation
Install update from vendor's website.