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
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2016-9941
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
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
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Clone Of:
Environment:
Last Closed: 2017-01-24 06:02:21 UTC
Embargoed:

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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:

https://github.com/LibVNC/libvncserver/commit/5418e8007c248bf9668d22a8c1fa9528149b69f2

Upstream bug:

https://github.com/LibVNC/libvncserver/pull/137
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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