Red Hat Security Advisory: OpenShift Container Platform 4.21.16 bug fix and security update

Important

A cross site scripting flaw has been discovered in the npm react-router and @remix-run/router packages. React Router (and Remix v1/v2) SPA open navigation redirects originating from loaders or actions in Framework Mode, Data Mode, or the unstable RSC modes can result in unsafe URLs causing unintended javascript execution on the client. This is only an issue if you are creating redirect paths from untrusted content or via an open redirect.

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 `:path` pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed `:path` that omits the mandatory leading slash. This allows the attacker to bypass defined security policies, potentially leading to unauthorized access to services or information disclosure.

CWE-551 - Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

A flaw was found in serialize-javascript. An attacker can exploit this vulnerability by providing a specially crafted "array-like" object with an excessively large length property during the serialization process. This action causes the application to enter an intensive loop, leading to 100% CPU consumption and an indefinite hang. The primary consequence is a Denial of Service (DoS), making the affected system unresponsive.

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

A flaw was found in Go JOSE, a library for handling JSON Web Encryption (JWE) objects. A remote attacker could exploit this vulnerability by providing a specially crafted JWE object. When decrypting such an object, if a key wrapping algorithm is specified but the encrypted key field is empty, the application can crash. This leads to a denial of service (DoS), making the affected service unavailable to legitimate users.

CWE-131 - Incorrect Calculation of Buffer Size

A flaw was found in Axios, a promise-based HTTP client. This vulnerability, known as Prototype Pollution, can be exploited through a specific "Gadget" attack chain. This allows an attacker to escalate a Prototype Pollution vulnerability in a third-party dependency, potentially leading to remote code execution or a full cloud compromise, such as bypassing AWS IMDSv2.

CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes

A flaw was found in Axios, an HTTP client library. This vulnerability allows an attacker to exploit a prototype pollution issue if another part of the application has already polluted the Object.prototype. By doing so, the attacker can intercept and modify JSON responses or take control of the HTTP communication. This could lead to unauthorized access to sensitive information like user credentials and request details.

CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes