CVE-2016-7421

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.

CVSS v3 4.4 MEDIUM
CVSS v2.0 2.1 LOW

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d251157ac1928191af851d199a9ff255d330bec9
http://www.openwall.com/lists/oss-security/2016/09/16/3	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/16/9	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/92998	Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html	Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03609.html	Patch Third Party Advisory
https://security.gentoo.org/glsa/201609-01	Third Party Advisory

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

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

History

No history.

Information

Published : 2016-12-10 00:59

Updated : 2024-02-04 19:11

NVD link : CVE-2016-7421

Mitre link : CVE-2016-7421

CVE.ORG link : CVE-2016-7421

JSON object : View

Products Affected

qemu

qemu

debian

debian_linux

CWE

CWE-834

Excessive Iteration

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