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Red Hat OpenStack Platform 13.0: RHSA-2020-0754 Moderate: noVNC XSS

red hat
Calendar Grey March 10, 2020
Dist Redhat Esm H88
Red Hat has released a security advisory regarding a moderate update for noVNC, highlighting vulnerability impacts and fix instructions. Learn more to enhance your system security now
An updated novnc package that fixes one security issue is now available for Red Hat Enterprise Linux OpenStack Platform 13.0

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

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate update xss redhat openstack novnc

References

https://access.redhat.com/security/cve/CVE-2017-18635 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server:
Source: novnc-1.1.0-2.el7ost.src.rpm
noarch: novnc-1.1.0-2.el7ost.noarch.rpm
Red Hat OpenStack Platform 13.0:
Source: novnc-1.1.0-2.el7ost.src.rpm
noarch: novnc-1.1.0-2.el7ost.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:0754-01
Product: Red Hat OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0754
Issue date: 2020-03-10

Topic

An updated novnc package that fixes one security issue is now available forRed Hat Enterprise Linux OpenStack Platform 13.0.Red Hat Product Security has rated this update as having Moderate securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory moderate update xss redhat openstack novnc

Relevant Releases Architectures

Red Hat OpenStack Platform 13.0 - noarch

Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server - noarch

Bugs Fixed

1484711 - [OSP13] rebase novnc to 1.1.0

1765660 - CVE-2017-18635 novnc: XSS vulnerability via the messages propagated to the status field

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