SB2023112745 - Multiple vulnerabilities in Red Hat OpenShift for Windows Containers 9.0



SB2023112745 - Multiple vulnerabilities in Red Hat OpenShift for Windows Containers 9.0

Published: November 27, 2023 Updated: December 6, 2024

Security Bulletin ID SB2023112745
Severity
High
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

High 25% Medium 75%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2023-39325)

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

The vulnerability exists due to excessive consumption of internal resources when handling HTTP/2 requests. A remote attacker can bypass the http2.Server.MaxConcurrentStreams setting by creating new connections while the current connections are still being processed, trigger resource exhaustion and perform a denial of service (DoS) attack.


2) Input validation error (CVE-ID: CVE-2023-3676)

The vulnerability allows a remote user to escalate privileges on Windows nodes.

The vulnerability exists due to improper input validation. A remote user with ability to create pods on Windows nodes can obtain administrative privileges on these nodes.


3) Input validation error (CVE-ID: CVE-2023-3955)

The vulnerability allows a remote user to escalate privileges on Windows nodes.

The vulnerability exists due to improper input validation. A remote user with ability to create pods on Windows nodes can obtain administrative privileges on these nodes.

4) Resource exhaustion (CVE-ID: CVE-2023-44487)

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

The vulnerability exists due to improperly control of consumption for internal resources when handling HTTP/2 requests with compressed HEADERS frames. A remote attacker can send a sequence of compressed HEADERS frames followed by RST_STREAM frames and perform a denial of service (DoS) attack, a.k.a. "Rapid Reset".

Note, the vulnerability is being actively exploited in the wild.


Remediation

Install update from vendor's website.