Red Hat Security Advisory: OpenShift Container Platform 4.15.28 bug fix and security update

Important

A flaw was discovered in Go's net/http standard library package. When parsing a multipart form (either explicitly with Request.ParseMultipartForm or implicitly with Request.FormValue, Request.PostFormValue, or Request.FormFile), limits on the total size of the parsed form were not applied to the memory consumed while reading a single form line. This permits a maliciously crafted input containing very long lines to cause allocation of arbitrarily large amounts of memory, potentially leading to memory exhaustion. With fix, the ParseMultipartForm function now correctly limits the maximum size of form lines.

CWE-20 - Improper Input Validation

A flaw was found in the Go language standard library net/netip. The method Is*() (IsPrivate(), IsPublic(), etc) doesn't behave properly when working with IPv6 mapped to IPv4 addresses. The unexpected behavior can lead to integrity and confidentiality issues, specifically when these methods are used to control access to resources or data.

CWE-115 - Misinterpretation of Input