CVE-2015-7549 Information

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.

CVSS Vector

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

Reference

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

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.0