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CVE-2016-7422 Detail

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.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  6.0 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=973e7170dddefb491a48df5cba33b2ae151013a0
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2016/09/16/10 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2016/09/16/4 Mailing List  Third Party Advisory 
http://www.securityfocus.com/bid/92996 Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2017:2392 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2017:2408 Third Party Advisory 
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html Patch  Third Party Advisory 
https://security.gentoo.org/glsa/201609-01 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

10 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-7422
NVD Published Date:
12/09/2016
NVD Last Modified:
02/12/2023
Source:
Red Hat, Inc.