National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-7549 Detail

Current 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.

Source:  MITRE
Description Last Modified:  10/30/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.0 MEDIUM
Vector: AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H (V3 legend)
Impact Score: 4.0
Exploitability Score: 1.5


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 2.1 LOW
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.qemu.org/?p=qemu.git;a=commit;h=43b11a91dd861a946b231b89b754285 Issue Tracking Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175380.html Issue Tracking Third Party Advisory
http://www.debian.org/security/2016/dsa-3471 Issue Tracking Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/14/2 Issue Tracking Mailing List Third Party Advisory
http://www.securityfocus.com/bid/80761 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1291137 Issue Tracking Third Party Advisory
https://security.gentoo.org/glsa/201602-01 Issue Tracking Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • NULL Pointer Dereference (CWE-476)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:qemu:qemu:*:r1:*:*:*:*:*:*    versions up to (excluding) 2.5.0

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-7549
NVD Published Date:
10/30/2017
NVD Last Modified:
11/21/2017