[MacPorts] #57902: LibVNCServer @0.9.11: update to 0.9.12

[MacPorts]

#57902: LibVNCServer @0.9.11: update to 0.9.12
----------------------+--------------------------
 Reporter:  l2dy      |      Owner:  ryandesign
     Type:  update    |     Status:  assigned
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:  security  |       Port:  LibVNCServer
----------------------+--------------------------
 [security-announce] openSUSE-SU-2019:0045-1: important: Security update
 for LibVNCServer

 >   This update for LibVNCServer fixes the following issues:
 >
 >   Security issues fixed:
 >
 >   - CVE-2018-15126: Fixed use-after-free in file transfer extension
 >     (`bsc#1120114`)
 >   - CVE-2018-6307: Fixed use-after-free in file transfer extension
 server
 >     code (`bsc#1120115`)
 >   - CVE-2018-20020: Fixed heap out-of-bound write inside structure in
 VNC
 >     client code (`bsc#1120116`)
 >   - CVE-2018-15127: Fixed heap out-of-bounds write in rfbserver.c
 >     (`bsc#1120117`)
 >   - CVE-2018-20019: Fixed multiple heap out-of-bound writes in VNC
 client
 >     code (`bsc#1120118`)
 >   - CVE-2018-20023: Fixed information disclosure through improper
 >     initialization in VNC Repeater client code (`bsc#1120119`)
 >   - CVE-2018-20022: Fixed information disclosure through improper
 >     initialization in VNC client code (`bsc#1120120`)
 >   - CVE-2018-20024: Fixed NULL pointer dereference in VNC client code
 >     (`bsc#1120121`)
 >   - CVE-2018-20021: Fixed infinite loop in VNC client code
 (`bsc#1120122`)
 >
 >   This update was imported from the SUSE:SLE-12:Update update project.

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Ticket URL: <https://trac.macports.org/ticket/57902>
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