Bug 1062577 (CVE-2014-0055)

Summary:	CVE-2014-0055 kernel: vhost-net: insufficient handling of error conditions in get_rx_bufs()
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	aquini, dhoward, fhrbata, jasowang, jkurik, kernel-mgr, mst, nobody, npajkovs, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:31:24 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1058677, 1062579, 1070940, 1081503
Bug Blocks:	1062618

Description Petr Matousek 2014-02-07 11:13:59 UTC

A flaw was found in the way get_rx_bufs() function handled error conditions
reported by vhost_get_vq_desc().

A privileged user in the guest could use this flaw to crash the host.

Comment 1 Petr Matousek 2014-02-07 11:17:17 UTC

Statement:

This issue does not affect Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.

This issue affects the versions of Linux kernel as shipped with Red Hat Enterprise Linux 6. Future kernel updates for Red Hat Enterprise Linux 6 may address this issue.

Comment 3 Petr Matousek 2014-03-27 13:14:03 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1081503]

Comment 4 Josh Boyer 2014-03-27 16:03:57 UTC

Upstream patch submission:

http://patchwork.ozlabs.org/patch/334291/

Comment 5 errata-xmlrpc 2014-03-31 16:38:49 UTC

This issue has been addressed in following products:

  RHEV-H and Agents for RHEL-6

Via RHSA-2014:0339 https://rhn.redhat.com/errata/RHSA-2014-0339.html

Comment 6 errata-xmlrpc 2014-04-01 08:22:58 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:0328 https://rhn.redhat.com/errata/RHSA-2014-0328.html

Comment 7 Fedora Update System 2014-04-04 09:45:58 UTC

kernel-3.13.8-200.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2014-04-09 00:51:34 UTC

kernel-3.13.9-100.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.