Main Vulnerability Database Vulnerabilities #VU40954

Resource management error in Xen - CVE-2014-6268

Published: January 12, 2015 / Updated: August 9, 2020

Vulnerability identifier: #VU40954

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2014-6268

CWE-ID: CWE-399

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The evtchn_fifo_set_pending function in Xen 4.4.x allows local guest users to cause a denial of service (host crash) via vectors involving an uninitialized FIFO-based event channel control block when (1) binding or (2) moving an event to a different VCPU.

Affected software

Xen
Fedora
xen

How to mitigate CVE-2014-6268

Install update from vendor's website.

xen - update to 4.4.1-2.fc21

External References

http://www.securityfocus.com/bid/69753
http://www.securitytracker.com/id/1030829
http://xenbits.xen.org/xsa/advisory-107.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/95837

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