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CVE-2016-5126

Published: 1 June 2016

Heap-based buffer overflow in the iscsi_aio_ioctl function in block/iscsi.c in QEMU allows local guest OS users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code via a crafted iSCSI asynchronous I/O ioctl call.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
xenial
Released (1:2.5+dfsg-5ubuntu10.3)
precise Does not exist

trusty
Released (2.0.0+dfsg-2ubuntu1.26)
upstream Needs triage

wily Ignored
(end of life)
Patches:
upstream: http://git.qemu.org/?p=qemu.git;a=commitdiff;h=a6b3167fa0e825aebb5a7cd8b437b6d41584a196
qemu-kvm
Launchpad, Ubuntu, Debian
precise Not vulnerable
(code not present)
trusty Does not exist

upstream Needs triage

wily Does not exist

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H