CVE-2017-11334

2017-08-0200:00:00

ubuntu.com

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

27.0%

JSON

The address_space_write_continue function in exec.c in QEMU (aka Quick
Emulator) allows local guest OS privileged users to cause a denial of
service (out-of-bounds access and guest instance crash) by leveraging use
of qemu_map_ram_ptr to access guest ram block area.

Bugs

<https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=869173>

Notes

Author	Note
mdeslaur	second commit doesn’t look right, lock variable used in dma field, needs more investigation This issue caused a regression for Xen users, and was reverted in USN 3575-2. Since this is a low-severity issue, we are not going to include it in a subsequent update.