CVE-2017-5856

MEDIUM

Qemu < 2.8.1.1 - Memory Leak

Title source: rule

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 (7)

[Various Sources] http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=765a707000e838c30b18d712fe6cb3dd8e0435f3

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2017/02/01/19

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2017/02/02/14

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/95999

[Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1418342

[Third Party Advisory] https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html

[Third Party Advisory] https://security.gentoo.org/glsa/201702-28

Scores

CVSS v3 6.5

EPSS 0.0014

EPSS Percentile 34.1%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Classification

CWE

CWE-401

Status published

Affected Products (3)

qemu/qemu < 2.8.1.1

debian/debian_linux

n/a/n/a

Timeline

Published Mar 16, 2017

Tracked Since Feb 18, 2026