CVE-2017-5857

MEDIUM

Description

Memory leak in the virgl_cmd_resource_unref function in hw/display/virtio-gpu-3d.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_UNREF commands sent without detaching the backing storage beforehand.

References

http://git.qemu-project.org/?p=qemu.git;a=commit;h=5e8e3c4c75c199aa1017db816fca02be2a9f8798

http://www.openwall.com/lists/oss-security/2017/02/01/21

http://www.openwall.com/lists/oss-security/2017/02/02/16

http://www.securityfocus.com/bid/95993

https://bugzilla.redhat.com/show_bug.cgi?id=1418382

https://security.gentoo.org/glsa/201702-28

Details

Source: MITRE

Published: 2017-03-16

Updated: 2017-07-01

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 4.9

Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C)

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 2

Severity: MEDIUM