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VULNERABILITIES

CVE-2016-7421 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.4 MEDIUMVector: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

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d251157ac1928191af851d199a9ff255d330bec9 CVE
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html CVEMailing ListThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03609.html CVEPatchThird Party Advisory
https://security.gentoo.org/glsa/201609-01 CVEThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/16/3 CVEMailing ListThird Party Advisory

see all 14 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-834Excessive Iteration[email protected]

Affected Products

ProductVersions
qemu qemu
<= 2.7.1

CPE

  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
8.0

CPE

  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2016-7421
NVD Published Date:
Dec 10, 2016
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2016-7421 Details - Not Deferred