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

Redhat Large Esm H500
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 impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from
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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: libvncserver security update
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
CVE Names:         CVE-2018-7225 
====================================================================
1. Summary:

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 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.

2. 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

3. Description:

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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

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

6. 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

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 Workstation 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

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/

7. References:

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

8. Contact:

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

Copyright 2018 Red Hat, Inc.
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Red Hat: RHSA-2018-1055-01 Moderate: libvncserver Input Sanitization

red hat
Calendar Grey April 10, 2018
Dist Redhat Esm H88
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.

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
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.

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

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