Bug 1062577 - (CVE-2014-0055) CVE-2014-0055 kernel: vhost-net: insufficient handling of error conditions in get_rx_bufs()
CVE-2014-0055 kernel: vhost-net: insufficient handling of error conditions in...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20140325,repo...
: Security
Depends On: 1058677 1062579 1070940 1081503
Blocks: 1062618
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Reported: 2014-02-07 06:13 EST by Petr Matousek
Modified: 2016-10-04 00:19 EDT (History)
12 users (show)

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Doc Type: Bug Fix
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Description Petr Matousek 2014-02-07 06:13:59 EST
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 06:17:17 EST
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 09:14:03 EDT
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1081503]
Comment 4 Josh Boyer 2014-03-27 12:03:57 EDT
Upstream patch submission:

http://patchwork.ozlabs.org/patch/334291/
Comment 5 errata-xmlrpc 2014-03-31 12:38:49 EDT
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 04:22:58 EDT
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 05:45:58 EDT
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 2014-04-08 20:51:34 EDT
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.

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