CVE-2016-7421

4.4 MEDIUM
Published: December 10, 2016 Modified: May 06, 2026
View on NVD

Description

The pvscsi_ring_pop_req_descr function in hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by leveraging failure to limit process IO loop to the ring size.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d251157ac1928191af851d199a9ff255d330bec9
Source: secalert@redhat.com
http://www.openwall.com/lists/oss-security/2016/09/16/3
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/16/9
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://www.securityfocus.com/bid/92998
Source: secalert@redhat.com
Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
Source: secalert@redhat.com
Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03609.html
Source: secalert@redhat.com
Patch Third Party Advisory
https://security.gentoo.org/glsa/201609-01
Source: secalert@redhat.com
Third Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d251157ac1928191af851d199a9ff255d330bec9
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2016/09/16/3
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/16/9
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://www.securityfocus.com/bid/92998
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03609.html
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://security.gentoo.org/glsa/201609-01
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

14 reference(s) from NVD

Quick Stats

CVSS v3 Score
4.4 / 10.0
EPSS (Exploit Probability)
0.1%
29th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-834

Affected Vendors

debian qemu

Related CVEs

CVE-2026-44928 2.9
CVE-2026-44927 2.9
CVE-2026-43284 N/A
CVE-2013-10075 N/A
CVE-2026-8149 N/A