Skip to navigation Skip to main content

Utilities

  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
Red Hat Customer Portal
  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
  • Products & Services

    Products

    Support

    • Production Support
    • Development Support
    • Product Life Cycles

    Services

    • Consulting
    • Technical Account Management
    • Training & Certifications

    Documentation

    • Red Hat Enterprise Linux
    • Red Hat JBoss Enterprise Application Platform
    • Red Hat OpenStack Platform
    • Red Hat OpenShift Container Platform
    All Documentation

    Ecosystem Catalog

    • Red Hat Partner Ecosystem
    • Partner Resources
  • Tools

    Tools

    • Troubleshoot a product issue
    • Packages
    • Errata

    Customer Portal Labs

    • Configuration
    • Deployment
    • Security
    • Troubleshoot
    All labs

    Red Hat Insights

    Increase visibility into IT operations to detect and resolve technical issues before they impact your business.

    Learn More
    Go to Insights
  • Security

    Red Hat Product Security Center

    Engage with our Red Hat Product Security team, access security updates, and ensure your environments are not exposed to any known security vulnerabilities.

    Product Security Center

    Security Updates

    • Security Advisories
    • Red Hat CVE Database
    • Security Labs

    Keep your systems secure with Red Hat's specialized responses to security vulnerabilities.

    View Responses

    Resources

    • Security Blog
    • Security Measurement
    • Severity Ratings
    • Backporting Policies
    • Product Signing (GPG) Keys
  • Community

    Customer Portal Community

    • Discussions
    • Private Groups
    Community Activity

    Customer Events

    • Red Hat Convergence
    • Red Hat Summit

    Stories

    • Red Hat Subscription Value
    • You Asked. We Acted.
    • Open Source Communities
Or troubleshoot an issue.

Select Your Language

  • English
  • Français
  • 한국어
  • 日本語
  • 中文 (中国)

Infrastructure and Management

  • Red Hat Enterprise Linux
  • Red Hat Satellite
  • Red Hat Subscription Management
  • Red Hat Insights
  • Red Hat Ansible Automation Platform

Cloud Computing

  • Red Hat OpenShift
  • Red Hat OpenStack Platform
  • Red Hat OpenShift Container Platform
  • Red Hat OpenShift Data Science
  • Red Hat OpenShift Dedicated
  • Red Hat Advanced Cluster Security for Kubernetes
  • Red Hat Advanced Cluster Management for Kubernetes
  • Red Hat Quay
  • OpenShift Dev Spaces
  • Red Hat OpenShift Service on AWS

Storage

  • Red Hat Gluster Storage
  • Red Hat Hyperconverged Infrastructure
  • Red Hat Ceph Storage
  • Red Hat OpenShift Data Foundation

Runtimes

  • Red Hat Runtimes
  • Red Hat JBoss Enterprise Application Platform
  • Red Hat Data Grid
  • Red Hat JBoss Web Server
  • Red Hat Single Sign On
  • Red Hat support for Spring Boot
  • Red Hat build of Node.js
  • Red Hat build of Quarkus

Integration and Automation

  • Red Hat Application Foundations
  • Red Hat Fuse
  • Red Hat AMQ
  • Red Hat 3scale API Management
All Products
Red Hat Product Errata RHSA-2020:0754 - Security Advisory
Issued:
2020-03-10
Updated:
2020-03-10

RHSA-2020:0754 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Moderate: novnc security update

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An updated novnc package that fixes one security issue is now available for
Red Hat Enterprise Linux OpenStack Platform 13.0.

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

Description

The novnc package provides a VNC client that uses HTML5 (Web Sockets, Canvas) and includes encryption support.

An XSS vulnerability was discovered in noVNC in which arbitrary HTML could be injected into the noVNC web page. An attacker having access to a VNC server could use target host values in a crafted URL to gain access to secure information (such as VM tokens). (CVE-2017-18635)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat OpenStack for IBM Power 13 ppc64le
  • Red Hat OpenStack 13 x86_64

Fixes

  • BZ - 1484711 - [OSP13] rebase novnc to 1.1.0
  • BZ - 1765660 - CVE-2017-18635 novnc: XSS vulnerability via the messages propagated to the status field

CVEs

  • CVE-2017-18635

References

  • https://access.redhat.com/security/updates/classification/#moderate
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat OpenStack for IBM Power 13

SRPM
novnc-1.1.0-2.el7ost.src.rpm SHA-256: b8bacca018fc6e70c1de6a49658e62469c665c42119f6a6ae0d5d5e6ad4b81f0
ppc64le
novnc-1.1.0-2.el7ost.noarch.rpm SHA-256: c812e83e4ec6d3752fb4a6c61fb43bf8321fc318ba8dc3d35f8eaaa0e1223bc1

Red Hat OpenStack 13

SRPM
novnc-1.1.0-2.el7ost.src.rpm SHA-256: b8bacca018fc6e70c1de6a49658e62469c665c42119f6a6ae0d5d5e6ad4b81f0
x86_64
novnc-1.1.0-2.el7ost.noarch.rpm SHA-256: c812e83e4ec6d3752fb4a6c61fb43bf8321fc318ba8dc3d35f8eaaa0e1223bc1

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

Red Hat

Quick Links

  • Downloads
  • Subscriptions
  • Support Cases
  • Customer Service
  • Product Documentation

Help

  • Contact Us
  • Customer Portal FAQ
  • Log-in Assistance

Site Info

  • Trust Red Hat
  • Browser Support Policy
  • Accessibility
  • Awards and Recognition
  • Colophon

Related Sites

  • redhat.com
  • developers.redhat.com
  • connect.redhat.com
  • cloud.redhat.com

About

  • Red Hat Subscription Value
  • About Red Hat
  • Red Hat Jobs
2023
  • Privacy Statement
  • Terms of Use
  • All Policies and Guidelines
We've updated our <a href='http://www.redhat.com/en/about/privacy-policy' class='privacy-policy'>Privacy Statement</a> effective September 15, 2023.
Red Hat Summit Red Hat Summit
Twitter