Bug 1410166 (CVE-2016-9941) - CVE-2016-9941 libvncserver: Heap-based buffer overflow in rfbproto.c
Summary: CVE-2016-9941 libvncserver: Heap-based buffer overflow in rfbproto.c
Alias: CVE-2016-9941
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1410178 1410179 1410180
Blocks: 1410176
TreeView+ depends on / blocked
Reported: 2017-01-04 16:13 UTC by Adam Mariš
Modified: 2019-09-29 14:03 UTC (History)
5 users (show)

Fixed In Version: libvncserver 0.9.11
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2017-01-24 06:02:21 UTC

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Description Adam Mariš 2017-01-04 16:13:25 UTC
Heap-based buffer overflow in rfbproto.c was found in LibVNCClient in LibVNCServer before 0.9.11 that allows remote servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted FramebufferUpdate message containing a subrectangle outside of the client drawing area.

Upstream patch:


Upstream bug:


Comment 1 Adam Mariš 2017-01-04 16:41:17 UTC
Created libvncserver tracking bugs for this issue:

Affects: fedora-all [bug 1410178]
Affects: epel-5 [bug 1410179]
Affects: epel-7 [bug 1410180]

Comment 3 Fedora Update System 2017-05-26 03:54:49 UTC
libvncserver-0.9.11-2.fc24.1 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

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