A libvncserver security update has been released for Red Hat Enterprise Linux 7 to address an issue where HandleCursorShape() integer overflow resulting in heap-based buffer overflow.
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Red Hat Security Advisory
Synopsis: Important: libvncserver security update
Advisory ID: RHSA-2020:0913-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0913
Issue date: 2020-03-23
CVE Names: CVE-2019-15690
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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 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 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: 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 Client (v. 7):
Source:
libvncserver-0.9.9-14.el7_7.src.rpm
x86_64:
libvncserver-0.9.9-14.el7_7.i686.rpm
libvncserver-0.9.9-14.el7_7.x86_64.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.i686.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
libvncserver-debuginfo-0.9.9-14.el7_7.i686.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.x86_64.rpm
libvncserver-devel-0.9.9-14.el7_7.i686.rpm
libvncserver-devel-0.9.9-14.el7_7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
libvncserver-0.9.9-14.el7_7.src.rpm
ppc64le:
libvncserver-0.9.9-14.el7_7.ppc64le.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.ppc64le.rpm
x86_64:
libvncserver-0.9.9-14.el7_7.i686.rpm
libvncserver-0.9.9-14.el7_7.x86_64.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.i686.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64le:
libvncserver-debuginfo-0.9.9-14.el7_7.ppc64le.rpm
libvncserver-devel-0.9.9-14.el7_7.ppc64le.rpm
x86_64:
libvncserver-debuginfo-0.9.9-14.el7_7.i686.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.x86_64.rpm
libvncserver-devel-0.9.9-14.el7_7.i686.rpm
libvncserver-devel-0.9.9-14.el7_7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
libvncserver-0.9.9-14.el7_7.src.rpm
x86_64:
libvncserver-0.9.9-14.el7_7.i686.rpm
libvncserver-0.9.9-14.el7_7.x86_64.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.i686.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
libvncserver-debuginfo-0.9.9-14.el7_7.i686.rpm
libvncserver-debuginfo-0.9.9-14.el7_7.x86_64.rpm
libvncserver-devel-0.9.9-14.el7_7.i686.rpm
libvncserver-devel-0.9.9-14.el7_7.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.
