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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2015-8701 Detail

Description

QEMU (aka Quick Emulator) built with the Rocker switch emulation support is vulnerable to an off-by-one error. It happens while processing transmit (tx) descriptors in 'tx_consume' routine, if a descriptor was to have more than allowed (ROCKER_TX_FRAGS_MAX=16) fragments. A privileged user inside guest could use this flaw to cause memory leakage on the host or crash the QEMU process instance resulting in DoS issue.


Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  6.5 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2015/12/28/6 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2015/12/29/1 Mailing List  Third Party Advisory 
http://www.securityfocus.com/bid/79706 Third Party Advisory  VDB Entry 
https://bugzilla.redhat.com/show_bug.cgi?id=1286971 Issue Tracking 
https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg04629.html Patch  Vendor Advisory 
https://security.gentoo.org/glsa/201602-01 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-193 Off-by-one Error cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-8701
NVD Published Date:
12/29/2016
NVD Last Modified:
11/10/2020
Source:
Red Hat, Inc.