Bug 1661132 (CVE-2018-20024) - CVE-2018-20024 libvncserver: NULL pointer dereference in VNC client code allows for denial of service
Summary: CVE-2018-20024 libvncserver: NULL pointer dereference in VNC client code allo...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-20024
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1661133 1661134 1662999 1663004
Blocks: 1661105
TreeView+ depends on / blocked
 
Reported: 2018-12-20 07:19 UTC by Sam Fowler
Modified: 2021-10-27 03:19 UTC (History)
3 users (show)

Fixed In Version:
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Last Closed: 2021-10-27 03:19:14 UTC
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Description Sam Fowler 2018-12-20 07:19:59 UTC 
LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS.


External Reference:

https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/


Upstream Patch:

https://github.com/LibVNC/libvncserver/commit/4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7
Comment 1 Sam Fowler 2018-12-20 07:20:12 UTC 
Created libvncserver tracking bugs for this issue:

Affects: epel-7 [bug 1661134]
Affects: fedora-all [bug 1661133]
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