CVE-2015-7549

LOW

Description

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.

References

http://git.qemu.org/?p=qemu.git;a=commit;h=43b11a91dd861a946b231b89b754285

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175380.html

http://www.debian.org/security/2016/dsa-3471

http://www.openwall.com/lists/oss-security/2015/12/14/2

http://www.securityfocus.com/bid/80761

https://bugzilla.redhat.com/show_bug.cgi?id=1291137

https://security.gentoo.org/glsa/201602-01

Details

Source: MITRE

Published: 2017-10-30

Updated: 2017-11-21

Type: CWE-476

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:P)

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3.0

Base Score: 6

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 1.5

Severity: MEDIUM