CVE-2016-7422
Detail
Modified After Enrichment This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
References to Advisories, Solutions, and Tools
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URL
Source(s)
Tag(s)
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=973e7170dddefb491a48df5cba33b2ae151013a0
CVE, Inc., Red Hat
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
CVE, Inc., Red Hat
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/16/10
CVE, Inc., Red Hat
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/16/4
CVE, Inc., Red Hat
Mailing List
Third Party Advisory
http://www.securityfocus.com/bid/92996
CVE, Inc., Red Hat
Third Party Advisory
VDB Entry
https://access.redhat.com/errata/RHSA-2017:2392
CVE, Inc., Red Hat
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2408
CVE, Inc., Red Hat
Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html
CVE, Inc., Red Hat
Patch
Third Party Advisory
https://security.gentoo.org/glsa/201609-01
CVE, Inc., Red Hat
Third Party Advisory
Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
NIST
Change History
14 change records found show changes
CVE Modified by Red Hat, Inc.
6/16/2026 8:53:02 PM
Action
Type
Old Value
New Value
Added
Affected
[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]
CVE Status Change
5/06/2026 6:30:45 PM
Action
Type
Old Value
New Value
CVE Modified by CVE
11/20/2024 9:57:58 PM
Action
Type
Old Value
New Value
Added
Reference
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=973e7170dddefb491a48df5cba33b2ae151013a0
Added
Reference
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
Added
Reference
http://www.openwall.com/lists/oss-security/2016/09/16/10
Added
Reference
http://www.openwall.com/lists/oss-security/2016/09/16/4
Added
Reference
http://www.securityfocus.com/bid/92996
Added
Reference
https://access.redhat.com/errata/RHSA-2017:2392
Added
Reference
https://access.redhat.com/errata/RHSA-2017:2408
Added
Reference
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html
Added
Reference
https://security.gentoo.org/glsa/201609-01
CVE Modified by Red Hat, Inc.
5/14/2024 12:05:35 AM
Action
Type
Old Value
New Value
CVE Modified by Red Hat, Inc.
2/12/2023 6:25:25 PM
Action
Type
Old Value
New Value
Changed
Description
CVE-2016-7422 Qemu: virtio: null pointer dereference in virtqueu_map_desc
The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.
Removed
CVSS V3
Red Hat, Inc. AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Removed
CVSS V2
Red Hat, Inc. (AV:A/AC:M/Au:S/C:N/I:N/A:P)
Removed
Reference
https://access.redhat.com/security/cve/CVE-2016-7422 [No Types Assigned]
Removed
Reference
https://bugzilla.redhat.com/show_bug.cgi?id=1376755 [No Types Assigned]
CVE Modified by Red Hat, Inc.
2/02/2023 4:17:21 PM
Action
Type
Old Value
New Value
Changed
Description
The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.
CVE-2016-7422 Qemu: virtio: null pointer dereference in virtqueu_map_desc
Added
CVSS V3
Red Hat, Inc. AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Added
CVSS V2
Red Hat, Inc. (AV:A/AC:M/Au:S/C:N/I:N/A:P)
Added
Reference
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=973e7170dddefb491a48df5cba33b2ae151013a0 [No Types Assigned]
Added
Reference
https://access.redhat.com/security/cve/CVE-2016-7422 [No Types Assigned]
Added
Reference
https://bugzilla.redhat.com/show_bug.cgi?id=1376755 [No Types Assigned]
Removed
Reference
http://git.qemu.org/?p=qemu.git;a=commit;h=973e7170dddefb491a48df5cba33b2ae151013a0 [Patch, Vendor Advisory]
CPE Deprecation Remap by NIST
8/04/2021 1:15:17 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:redhat:openstack:8.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/04/2021 1:15:24 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:redhat:openstack:11.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:*
CPE Deprecation Remap by NIST
8/04/2021 1:15:35 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:redhat:openstack:9.0:*:*:*:*:*:*:*
OR
*cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*
Modified Analysis by NIST
10/15/2020 1:15:20 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Removed
CVSS V3
NIST AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Added
CWE
NIST CWE-120
Removed
CWE
NIST CWE-476
Changed
CPE Configuration
OR
*cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*
OR
*cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 2.7.1
Added
CPE Configuration
AND
OR
*cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
OR
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:8.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:9.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:openstack:11.0:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
Changed
Reference Type
http://git.qemu.org/?p=qemu.git;a=commit;h=973e7170dddefb491a48df5cba33b2ae151013a0 Issue Tracking, Patch
http://git.qemu.org/?p=qemu.git;a=commit;h=973e7170dddefb491a48df5cba33b2ae151013a0 Patch, Vendor Advisory
Changed
Reference Type
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html No Types Assigned
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html Mailing List, Third Party Advisory
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2017:2392 No Types Assigned
https://access.redhat.com/errata/RHSA-2017:2392 Third Party Advisory
Changed
Reference Type
https://access.redhat.com/errata/RHSA-2017:2408 No Types Assigned
https://access.redhat.com/errata/RHSA-2017:2408 Third Party Advisory
Changed
Reference Type
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html Patch, Vendor Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html Patch, Third Party Advisory
Changed
Reference Type
https://security.gentoo.org/glsa/201609-01 No Types Assigned
https://security.gentoo.org/glsa/201609-01 Third Party Advisory
CVE Modified by Red Hat, Inc.
1/04/2018 9:31:14 PM
Action
Type
Old Value
New Value
Added
Reference
https://access.redhat.com/errata/RHSA-2017:2392 [No Types Assigned]
Added
Reference
https://access.redhat.com/errata/RHSA-2017:2408 [No Types Assigned]
CVE Modified by Red Hat, Inc.
6/30/2017 9:30:06 PM
Action
Type
Old Value
New Value
Added
Reference
https://security.gentoo.org/glsa/201609-01 [No Types Assigned]
CVE Modified by Red Hat, Inc.
1/06/2017 10:00:39 PM
Action
Type
Old Value
New Value
Added
Reference
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html [No Types Assigned]
Initial Analysis by NIST
12/12/2016 1:46:10 PM
Action
Type
Old Value
New Value
Added
CVSS V3
AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Added
CVSS V2
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Added
CWE
CWE-476
Added
CPE Configuration
Configuration 1
OR
*cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*
Changed
Reference Type
http://git.qemu.org/?p=qemu.git;a=commit;h=973e7170dddefb491a48df5cba33b2ae151013a0 No Types Assigned
http://git.qemu.org/?p=qemu.git;a=commit;h=973e7170dddefb491a48df5cba33b2ae151013a0 Issue Tracking, Patch
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2016/09/16/10 No Types Assigned
http://www.openwall.com/lists/oss-security/2016/09/16/10 Third Party Advisory, Mailing List
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2016/09/16/4 No Types Assigned
http://www.openwall.com/lists/oss-security/2016/09/16/4 Third Party Advisory, Mailing List
Changed
Reference Type
http://www.securityfocus.com/bid/92996 No Types Assigned
http://www.securityfocus.com/bid/92996 Third Party Advisory, VDB Entry
Changed
Reference Type
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html No Types Assigned
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html Vendor Advisory, Patch
Quick Info
CVE Dictionary Entry: CVE-2016-7422 NVD
Published Date: 12/09/2016 NVD
Last Modified: 06/16/2026
Source: Red Hat, Inc.
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