Bug 970631 (CVE-2013-2194, CVE-2013-2195, CVE-2013-2196)

Summary:

CVE-2013-2194 CVE-2013-2195 CVE-2013-2196 xen: Multiple vulnerabilities in libelf PV kernel handling

Product:

[Other] Security Response

Reporter:

Petr Matousek <pmatouse>

Component:

vulnerability

Assignee:

Red Hat Product Security <security-response-team>

Status:

CLOSED WONTFIX

QA Contact:

Severity:

high

Docs Contact:

Priority:

high

Version:

unspecified

CC:

drjones, imammedo, jforbes, kraxel, lersek, m.a.young, mrezanin, pbonzini, rkrcmar, virt-maint, xen-maint

Target Milestone:

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Keywords:

Security

Target Release:

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Hardware:

All

OS:

Linux

Whiteboard:

Fixed In Version:

Doc Type:

Bug Fix

Doc Text:

Story Points:

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Clone Of:

Environment:

Last Closed:

2014-06-11 09:06:34 UTC

Type:

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Regression:

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Mount Type:

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Documentation:

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CRM:

Verified Versions:

Category:

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oVirt Team:

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RHEL 7.3 requirements from Atomic Host:

Cloudforms Team:

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Target Upstream Version:

Embargoed:

Bug Depends On:

970637, 970638, 970640

Bug Blocks:

970653

Attachments:

Description	Flags
Original Xen Security Advisory #55v4	none

Description Petr Matousek 2013-06-04 13:30:13 UTC

The ELF parser used by the Xen tools to read domains' kernels and
construct domains has multiple integer overflows, pointer dereferences
based on calculations from unchecked input values, and other problems.

A malicious PV domain administrator who can specify their own kernel
can escalate their privilege to that of the domain construction tools
(i.e., normally, to control of the host).

References:

http://lists.xen.org/archives/html/xen-devel/2013-06/msg00223.html

Acknowledgements:

Red Hat would like to thank the Xen project for reporting this issue.

Comment 4 Petr Matousek 2013-06-04 13:37:52 UTC

Created xen tracking bugs for this issue

Affects: fedora-all [bug 970640]

Comment 5 Petr Matousek 2013-06-07 17:06:16 UTC

Update:

http://www.openwall.com/lists/oss-security/2013/06/07/5

Comment 8 Fedora Update System 2013-06-13 06:50:47 UTC

xen-4.2.2-6.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2013-06-14 02:28:42 UTC

xen-4.2.2-6.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 10 Petr Matousek 2013-06-14 17:00:13 UTC

Created attachment 761352 [details]
Original Xen Security Advisory #55v4

Updated Xen Security Advisory with fixed patch series git changeset ids in xen.git.

Reference:

http://seclists.org/oss-sec/2013/q2/561

Comment 11 Fedora Update System 2013-06-16 05:44:27 UTC

xen-4.1.5-5.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 12 Petr Matousek 2013-06-20 10:39:07 UTC

CVE ids assigned as per:
  http://www.openwall.com/lists/oss-security/2013/06/20/2
  http://www.openwall.com/lists/oss-security/2013/06/20/4

Comment 13 Fedora Update System 2013-06-24 03:24:33 UTC

xen-4.2.2-7.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 14 Fedora Update System 2013-06-24 03:26:09 UTC

xen-4.1.5-6.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 15 Fedora Update System 2013-06-29 18:46:58 UTC

xen-4.2.2-7.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 16 Petr Matousek 2014-06-11 09:06:34 UTC

Statement:

The risks associated with fixing this issue are greater than its security impact. This issue is not currently planned to be addressed in future xen updates for Red Hat Enterprise Linux 5.