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Bug 1014702 - (CVE-2016-9921) VUL-0: CVE-2016-9921, CVE-2016-9922: qemu: display: cirrus_vga: a divide by zero in cirrus_do_copy
(CVE-2016-9921)
VUL-0: CVE-2016-9921, CVE-2016-9922: qemu: display: cirrus_vga: a divide by z...
Status: RESOLVED FIXED
Classification: Novell Products
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents
unspecified
Other Other
: P3 - Medium : Normal
: unspecified
Assigned To: Bruce Rogers
Security Team bot
.
:
Depends on:
Blocks:
  Show dependency tree / graph
 
Reported: 2016-12-09 00:35 UTC by Mikhail Kasimov
Modified: 2019-02-14 14:26 UTC (History)
3 users (show)

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Found By: ---
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IT Deployment: ---

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Description Mikhail Kasimov 2016-12-09 00:35:58 UTC 
Reference: http://seclists.org/oss-sec/2016/q4/634
===================================================
  Hello,

Quick emulator(Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA.


A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.


Upstream patch
--------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.html

Reference:
----------
  -> https://bugzilla.redhat.com/show_bug.cgi?id=1334398

This issue was independently reported by Qinghao Tang, Li Qiang of Qihoo 360.cn Inc. and PSIRTeam of Huawei Inc.



Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F


===================================================
Comment 1 Mikhail Kasimov 2016-12-09 10:23:47 UTC 
http://seclists.org/oss-sec/2016/q4/646 :
======================================================================
Use CVE-2016-9921 for the "'cirrus_get_bpp' returns zero(0), which
could lead to a divide by zero" issue.

Use CVE-2016-9922 for the "blit pitch values" issue.
======================================================================
Comment 2 Swamp Workflow Management 2016-12-09 23:00:13 UTC 
bugbot adjusting priority
Comment 3 Marcus Meissner 2016-12-12 16:29:03 UTC 
CVE-2016-9921 is in very old qemu already, so probably everywhere in qemu and kvm.

CVE-2016-9922 is in qemu 1.4.2 in SLE11 KVM and newer.
Comment 4 Swamp Workflow Management 2017-03-07 17:10:24 UTC 
SUSE-SU-2017:0625-1: An update that solves 15 vulnerabilities and has four fixes is now available.

Category: security (important)
Bug References: 1014702,1015169,1016779,1017081,1017084,1020491,1020589,1020928,1021129,1021195,1021481,1022541,1023004,1023053,1023073,1023907,1024972,1026583,977027
CVE References: CVE-2016-10028,CVE-2016-10029,CVE-2016-10155,CVE-2016-9921,CVE-2016-9922,CVE-2017-2615,CVE-2017-2620,CVE-2017-5525,CVE-2017-5526,CVE-2017-5552,CVE-2017-5578,CVE-2017-5667,CVE-2017-5856,CVE-2017-5857,CVE-2017-5898
Sources used:
SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (src):    qemu-2.6.2-41.9.1
SUSE Linux Enterprise Server 12-SP2 (src):    qemu-2.6.2-41.9.1
SUSE Linux Enterprise Desktop 12-SP2 (src):    qemu-2.6.2-41.9.1
Comment 5 Bruce Rogers 2017-03-07 22:57:58 UTC 
Fixed.
Comment 6 Swamp Workflow Management 2017-03-10 20:09:38 UTC 
SUSE-SU-2017:0661-1: An update that solves 11 vulnerabilities and has two fixes is now available.

Category: security (important)
Bug References: 1013285,1014109,1014111,1014702,1015048,1015169,1016779,1021129,1022541,1023004,1023053,1023907,1024972
CVE References: CVE-2016-10155,CVE-2016-9776,CVE-2016-9907,CVE-2016-9911,CVE-2016-9921,CVE-2016-9922,CVE-2017-2615,CVE-2017-2620,CVE-2017-5667,CVE-2017-5856,CVE-2017-5898
Sources used:
SUSE Linux Enterprise Server for SAP 12 (src):    qemu-2.0.2-48.31.1
SUSE Linux Enterprise Server 12-LTSS (src):    qemu-2.0.2-48.31.1
Comment 7 Swamp Workflow Management 2017-03-16 17:08:15 UTC 
openSUSE-SU-2017:0707-1: An update that solves 15 vulnerabilities and has four fixes is now available.

Category: security (important)
Bug References: 1014702,1015169,1016779,1017081,1017084,1020491,1020589,1020928,1021129,1021195,1021481,1022541,1023004,1023053,1023073,1023907,1024972,1026583,977027
CVE References: CVE-2016-10028,CVE-2016-10029,CVE-2016-10155,CVE-2016-9921,CVE-2016-9922,CVE-2017-2615,CVE-2017-2620,CVE-2017-5525,CVE-2017-5526,CVE-2017-5552,CVE-2017-5578,CVE-2017-5667,CVE-2017-5856,CVE-2017-5857,CVE-2017-5898
Sources used:
openSUSE Leap 42.2 (src):    qemu-2.6.2-29.4, qemu-linux-user-2.6.2-29.1, qemu-testsuite-2.6.2-29.8
Comment 8 Swamp Workflow Management 2017-04-28 19:12:00 UTC 
SUSE-SU-2017:1135-1: An update that solves 10 vulnerabilities and has two fixes is now available.

Category: security (important)
Bug References: 1013285,1014109,1014111,1014702,1015048,1015169,1016779,1021129,1023004,1023053,1023907,1024972
CVE References: CVE-2016-10155,CVE-2016-9776,CVE-2016-9907,CVE-2016-9911,CVE-2016-9921,CVE-2016-9922,CVE-2017-2615,CVE-2017-2620,CVE-2017-5856,CVE-2017-5898
Sources used:
SUSE Linux Enterprise Server 11-SP4 (src):    kvm-1.4.2-59.1
Comment 9 Swamp Workflow Management 2017-05-11 13:10:09 UTC 
SUSE-SU-2017:1241-1: An update that solves 13 vulnerabilities and has four fixes is now available.

Category: security (important)
Bug References: 1013285,1014109,1014111,1014702,1015048,1015169,1016779,1020491,1020589,1020928,1021129,1022541,1023004,1023053,1023907,1024972,937125
CVE References: CVE-2016-10155,CVE-2016-9776,CVE-2016-9907,CVE-2016-9911,CVE-2016-9921,CVE-2016-9922,CVE-2017-2615,CVE-2017-2620,CVE-2017-5525,CVE-2017-5526,CVE-2017-5667,CVE-2017-5856,CVE-2017-5898
Sources used:
SUSE Linux Enterprise Server 12-SP1 (src):    qemu-2.3.1-32.11
SUSE Linux Enterprise Desktop 12-SP1 (src):    qemu-2.3.1-32.11
Comment 10 Swamp Workflow Management 2017-05-16 19:10:45 UTC 
openSUSE-SU-2017:1312-1: An update that solves 13 vulnerabilities and has four fixes is now available.

Category: security (important)
Bug References: 1013285,1014109,1014111,1014702,1015048,1015169,1016779,1020491,1020589,1020928,1021129,1022541,1023004,1023053,1023907,1024972,937125
CVE References: CVE-2016-10155,CVE-2016-9776,CVE-2016-9907,CVE-2016-9911,CVE-2016-9921,CVE-2016-9922,CVE-2017-2615,CVE-2017-2620,CVE-2017-5525,CVE-2017-5526,CVE-2017-5667,CVE-2017-5856,CVE-2017-5898
Sources used:
openSUSE Leap 42.1 (src):    qemu-2.3.1-25.1, qemu-linux-user-2.3.1-25.1, qemu-testsuite-2.3.1-25.1
Comment 11 Swamp Workflow Management 2017-11-24 20:13:05 UTC 
SUSE-SU-2017:3084-1: An update that solves 33 vulnerabilities and has 7 fixes is now available.

Category: security (important)
Bug References: 1013285,1014109,1014111,1014702,1015048,1016779,1020427,1021129,1021741,1023004,1023053,1023907,1024972,1025109,1028184,1028656,1030624,1031051,1034044,1034866,1034908,1035406,1035950,1037242,1038396,1039495,1042159,1042800,1042801,1043296,1045035,1046636,1047674,1048902,1049381,1049785,1056334,1057585,1062069,1063122
CVE References: CVE-2016-10155,CVE-2016-9602,CVE-2016-9603,CVE-2016-9776,CVE-2016-9907,CVE-2016-9911,CVE-2016-9921,CVE-2016-9922,CVE-2017-10664,CVE-2017-10806,CVE-2017-11334,CVE-2017-11434,CVE-2017-13672,CVE-2017-14167,CVE-2017-15038,CVE-2017-15289,CVE-2017-2615,CVE-2017-2620,CVE-2017-5579,CVE-2017-5856,CVE-2017-5898,CVE-2017-5973,CVE-2017-6505,CVE-2017-7471,CVE-2017-7493,CVE-2017-7718,CVE-2017-7980,CVE-2017-8086,CVE-2017-8309,CVE-2017-9330,CVE-2017-9373,CVE-2017-9375,CVE-2017-9503
Sources used:
SUSE Linux Enterprise Server 11-SP3-LTSS (src):    kvm-1.4.2-53.11.1
SUSE Linux Enterprise Point of Sale 11-SP3 (src):    kvm-1.4.2-53.11.1
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