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CVE-2015-7549

Published: 16 December 2015

The MSI-X MMIO support in hw/pci/msix.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) by leveraging failure to define the .write method.

Priority

Medium

Cvss 3 Severity Score

6.0

Score breakdown

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
precise Does not exist

trusty
Released (2.0.0+dfsg-2ubuntu1.22)
upstream Needs triage

vivid Ignored
(end of life)
wily
Released (1:2.3+dfsg-5ubuntu9.2)
Patches:
upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=43b11a91dd861a946b231b89b754285
qemu-kvm
Launchpad, Ubuntu, Debian
precise Not vulnerable
(code not present)
trusty Does not exist

upstream Needs triage

vivid Does not exist

wily Does not exist

Severity score breakdown

Parameter Value
Base score 6.0
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Changed
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H