SB2022022405 - Multiple vulnerabilities in OpenShift Container Platform 4.9
Published: February 24, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2021-29923)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input in net.ParseIP and net.ParseCIDR, as the Go interpreter does not properly consider extraneous zero characters at the beginning
of an IP address octet. A remote attacker can
bypass access control that is based on IP addresses, because of
unexpected octal interpretation.
2) Race condition (CVE-ID: CVE-2021-36221)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition in net/http/httputil ReverseProxy when handling ErrAbortHandler events. A remote attacker can trigger a race condition and crash the ReverseProxy.
Remediation
Install update from vendor's website.