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Red Hat: CVE-2019-15690: CVE-2019-15690 libvncserver: HandleCursorShape() integer overflow resulting in heap-based buffer overflow (Multiple Advisories)

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Red Hat: CVE-2019-15690: CVE-2019-15690 libvncserver: HandleCursorShape() integer overflow resulting in heap-based buffer overflow (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/23/2020
Created
03/26/2020
Added
03/24/2020
Modified
12/15/2023

Description

A flaw was found in libvncserver. An integer overflow within the HandleCursorShape() function can be exploited to cause a heap-based buffer overflow by tricking a user or application using libvncserver to connect to an unstrusted server and subsequently send cursor shapes with specially crafted dimensions. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Solution(s)

  • redhat-upgrade-libvncserver
  • redhat-upgrade-libvncserver-debuginfo
  • redhat-upgrade-libvncserver-debugsource
  • redhat-upgrade-libvncserver-devel

References

  • CVE-2019-15690
  • RHSA-2020:0913
  • RHSA-2020:0920

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