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RedHat: RHSA-2020-0921-01 Important: libvncserver Buffer Overflow

Redhat Large Esm H500
An update for libvncserver is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,
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Hash: SHA256

====================================================================                   Red Hat Security Advisory

Synopsis:          Important: libvncserver security update
Advisory ID:       RHSA-2020:0921-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:0921
Issue date:        2020-03-23
CVE Names:         CVE-2019-15690 
====================================================================
1. Summary:

An update for libvncserver is now available for Red Hat Enterprise Linux
8.0 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact
of Important. 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 AppStream E4S (v. 8.0) - ppc64le, x86_64

3. Description:

LibVNCServer is a C library that enables you to implement VNC server
functionality into own programs.

Security Fix(es):

* libvncserver: HandleCursorShape() integer overflow resulting in
heap-based buffer overflow (CVE-2019-15690)

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.

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/):

1811948 - CVE-2019-15690 libvncserver: HandleCursorShape() integer overflow resulting in heap-based buffer overflow

6. Package List:

Red Hat Enterprise Linux AppStream E4S (v. 8.0):

Source:
libvncserver-0.9.11-9.el8_0.2.src.rpm

ppc64le:
libvncserver-0.9.11-9.el8_0.2.ppc64le.rpm
libvncserver-debuginfo-0.9.11-9.el8_0.2.ppc64le.rpm
libvncserver-debugsource-0.9.11-9.el8_0.2.ppc64le.rpm

x86_64:
libvncserver-0.9.11-9.el8_0.2.i686.rpm
libvncserver-0.9.11-9.el8_0.2.x86_64.rpm
libvncserver-debuginfo-0.9.11-9.el8_0.2.i686.rpm
libvncserver-debuginfo-0.9.11-9.el8_0.2.x86_64.rpm
libvncserver-debugsource-0.9.11-9.el8_0.2.i686.rpm
libvncserver-debugsource-0.9.11-9.el8_0.2.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-2019-15690
https://access.redhat.com/security/updates/classification#important

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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RedHat: RHSA-2020-0921-01 Important: libvncserver Buffer Overflow

red hat
Calendar Grey March 23, 2020
Dist Redhat Esm H88
Crucial libvncserver security patch released for Red Hat Enterprise Linux to mitigate a severe buffer overflow vulnerability.
An update for libvncserver is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

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: HandleCursorShape() integer overflow resulting in heap-based buffer overflow (CVE-2019-15690)
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.

References

https://access.redhat.com/security/cve/CVE-2019-15690 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream E4S (v. 8.0):
Source: libvncserver-0.9.11-9.el8_0.2.src.rpm
ppc64le: libvncserver-0.9.11-9.el8_0.2.ppc64le.rpm libvncserver-debuginfo-0.9.11-9.el8_0.2.ppc64le.rpm libvncserver-debugsource-0.9.11-9.el8_0.2.ppc64le.rpm
x86_64: libvncserver-0.9.11-9.el8_0.2.i686.rpm libvncserver-0.9.11-9.el8_0.2.x86_64.rpm libvncserver-debuginfo-0.9.11-9.el8_0.2.i686.rpm libvncserver-debuginfo-0.9.11-9.el8_0.2.x86_64.rpm libvncserver-debugsource-0.9.11-9.el8_0.2.i686.rpm libvncserver-debugsource-0.9.11-9.el8_0.2.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:0921-01
Product: Red Hat Enterprise Linux
Issue date: 2020-03-23

Topic

An update for libvncserver is now available for Red Hat Enterprise Linux8.0 Update Services for SAP Solutions.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream E4S (v. 8.0) - ppc64le, x86_64

Bugs Fixed

1811948 - CVE-2019-15690 libvncserver: HandleCursorShape() integer overflow resulting in heap-based buffer overflow

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