Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 524
Alerts This Week
Warning Icon 1 524

Red Hat: RHSA-2018-1055-01 Moderate: libvncserver Input Sanitization

red hat
Calendar Grey April 10, 2018
Scroller Redhat
Canonical unveils a significant patch for OpenSSH, addressing potential security vulnerabilities related to user authentication on Ubuntu 20.04.
An update for libvncserver is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

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

Summary

LibVNCServer is a C library that enables you to implement VNC server functionality into own programs.
Security Fix(es):
* libvncserver: Improper input sanitization in rfbProcessClientNormalMessage in rfbserver.c (CVE-2018-7225)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Enterprise Linux input sanitization libvncserver

References

https://access.redhat.com/security/cve/CVE-2018-7225 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: libvncserver-0.9.9-12.el7_5.src.rpm
x86_64: libvncserver-0.9.9-12.el7_5.i686.rpm libvncserver-0.9.9-12.el7_5.x86_64.rpm libvncserver-debuginfo-0.9.9-12.el7_5.i686.rpm libvncserver-debuginfo-0.9.9-12.el7_5.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: libvncserver-debuginfo-0.9.9-12.el7_5.i686.rpm libvncserver-debuginfo-0.9.9-12.el7_5.x86_64.rpm libvncserver-devel-0.9.9-12.el7_5.i686.rpm libvncserver-devel-0.9.9-12.el7_5.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: libvncserver-0.9.9-12.el7_5.src.rpm
ppc64le: libvncserver-0.9.9-12.el7_5.ppc64le.rpm libvncserver-debuginfo-0.9.9-12.el7_5.ppc64le.rpm
x86_64: libvncserver-0.9.9-12.el7_5.i686.rpm libvncserver-0.9.9-12.el7_5.x86_64.rpm libvncserver-debuginfo-0.9.9-12.el7_5.i686.rpm libvncserver-debuginfo-0.9.9-12.el7_5.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64le: libvncserver-debuginfo-0.9.9-12.el7_5.ppc64le.rpm libvncserver-devel-0.9.9-12.el7_5.ppc64le.rpm
x86_64: libvncserver-debuginfo-0.9.9-12.el7_5.i686.rpm libvncserver-debuginfo-0.9.9-12.el7_5.x86_64.rpm libvncserver-devel-0.9.9-12.el7_5.i686.rpm libvncserver-devel-0.9.9-12.el7_5.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: libvncserver-0.9.9-12.el7_5.src.rpm

Read the Full Advisory


Advisory ID: RHSA-2018:1055-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:1055
Issue date: 2018-04-10

Topic

An update for libvncserver is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Enterprise Linux input sanitization libvncserver

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64le, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64le, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1546858 - CVE-2018-7225 libvncserver: Improper input sanitization in rfbProcessClientNormalMessage in rfbserver.c

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.