National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

    Vulnerabilities Detail

CVE-2016-7907 Detail

Description

The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.

Source:  MITRE
Description Last Modified:  10/05/2016

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 4.4 MEDIUM
Vector: AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 0.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
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

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
http://www.openwall.com/lists/oss-security/2016/10/03/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/03/4 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/93274
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html Mailing List Patch Vendor Advisory
https://security.gentoo.org/glsa/201611-11

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

8 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-7907
NVD Published Date:
10/05/2016
NVD Last Modified:
06/30/2017