CVE-2016-7994 : Memory leak in the virtio_gpu_resource_create

Memory leak in the virtio_gpu_resource_create_2d function in hw/display/virtio-gpu.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_CREATE_2D commands.

Published 2016-12-10 00:59:22

Updated 2020-10-21 20:21:35

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2016-7994

Qemu » Qemu
Versions up to, including, (<=) 2.7.1
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Matching versions
Opensuse » Leap » Version: 42.2
cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2016-7994

EPSS FAQ

0.06%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 25 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-7994

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:L/AC:L/Au:N/C:N/I:N/A:P	3.9	2.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.0	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H	1.5	4.0	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2016-7994

CWE-772 Missing Release of Resource after Effective Lifetime

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-7994

https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg04083.html

[Qemu-devel] [PATCH] virtio-gpu: fix memory leak in virtio_gpu_resource_
Patch;Third Party Advisory
https://security.gentoo.org/glsa/201611-11

QEMU: Multiple vulnerabilities (GLSA 201611-11) — Gentoo security
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/10/08/3

oss-security - Re: CVE request Qemu virtio-gpu: memory leak in virtio_gpu_resource_create_2d
Mailing List;Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/07/2

oss-security - CVE request Qemu virtio-gpu: memory leak in virtio_gpu_resource_create_2d
Mailing List;Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html

openSUSE-SU-2016:3237-1: moderate: Security update for qemu
Mailing List;Third Party Advisory

CVEs referencing this url
http://www.securityfocus.com/bid/93453

QEMU 'hw/display/virtio-gpu.c' Information Disclosure Vulnerability
Third Party Advisory;VDB Entry

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Vulnerability Details : CVE-2016-7994

Products affected by CVE-2016-7994

Exploit prediction scoring system (EPSS) score for CVE-2016-7994

CVSS scores for CVE-2016-7994

CWE ids for CVE-2016-7994

References for CVE-2016-7994