Bug 1671403 (CVE-2018-20749) - CVE-2018-20749 libvncserver: Heap out-of-bounds write in rfbserver.c in rfbProcessFileTransferReadBuffer() allows for potential code execution (Incomplete fix for CVE-2018-15127)
Summary: CVE-2018-20749 libvncserver: Heap out-of-bounds write in rfbserver.c in rfbPr...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2018-20749
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1661115 1661116
Blocks: 1661105
TreeView+ depends on / blocked
 
Reported: 2019-01-31 14:29 UTC by Andrej Nemec
Modified: 2020-04-27 17:57 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-10 10:47:08 UTC
Embargoed:

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Description Andrej Nemec 2019-01-31 14:29:24 UTC 
LibVNC before 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.

Upstream patch:

https://github.com/LibVNC/libvncserver/commit/15bb719c03cc70f14c36a843dcb16ed69b405707

Upstream issue:

https://github.com/LibVNC/libvncserver/issues/273
Comment 1 Andrej Nemec 2019-01-31 14:34:26 UTC 
Created libvncserver tracking bugs for this issue:

Affects: epel-7 [bug 1661116]
Affects: fedora-all [bug 1661115]
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