CVE-2017-5856

MEDIUM

Description

Memory leak in the megasas_handle_dcmd function in hw/scsi/megasas.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) via MegaRAID Firmware Interface (MFI) commands with the sglist size set to a value over 2 Gb.

References

http://git.qemu-project.org/?p=qemu.git;a=commit;h=765a707000e838c30b18d712fe6cb3dd8e0435f3

http://www.openwall.com/lists/oss-security/2017/02/01/19

http://www.openwall.com/lists/oss-security/2017/02/02/14

http://www.securityfocus.com/bid/95999

https://bugzilla.redhat.com/show_bug.cgi?id=1418342

https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html

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

Details

Source: MITRE

Published: 2017-03-16

Updated: 2019-10-03

Type: CWE-772

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