RHSA-2020:0754 - Security Advisory

标题

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.

描述

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.

解决方案

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

受影响的产品

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

修复

• 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

CVE

• CVE-2017-18635

参考

• https://access.redhat.com/security/updates/classification/#moderate