Bug 1671405 (CVE-2018-20750) - CVE-2018-20750 libvncserver: Heap out-of-bounds write in rfbserver.c in rfbProcessFileTransferReadBuffer() allows for potential code execution (Incomplete fix for CVE-2018-15127)
Summary: CVE-2018-20750 libvncserver: Heap out-of-bounds write in rfbserver.c in rfbPr...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2018-20750
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 14:31 UTC by Andrej Nemec
Modified: 2020-04-27 17:59 UTC (History)
3 users (show)

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

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Description Andrej Nemec 2019-01-31 14:31:19 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/09e8fc02f59f16e2583b34fe1a270c238bd9ffec

Upstream issue:

https://github.com/LibVNC/libvncserver/issues/273
Comment 1 Andrej Nemec 2019-01-31 14:34:29 UTC 
Created libvncserver tracking bugs for this issue:

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