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Sigurnosni nedostaci programskog paketa MCrypt

  • Detalji os-a: WN7
  • Važnost: IMP
  • Operativni sustavi: L
  • Kategorije: LGE

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Gentoo Linux Security Advisory GLSA 201405-19
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http://security.gentoo.org/
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Severity: Normal
Title: MCrypt: User-assisted execution of arbitrary code
Date: May 18, 2014
Bugs: #434112, #440778
ID: 201405-19

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Synopsis
========

Multiple vulnerabilities have been found in MCrypt, allowing attackers
to execute arbitrary code or cause Denial of Service.

Background
==========

MCrypt is a replacement of the old unix crypt(1) utility.

Affected packages
=================

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 app-crypt/mcrypt < 2.6.8-r2 >= 2.6.8-r2

Description
===========

Multiple vulnerabilities have been discovered in MCrypt:

* A boundary error in MCrypt could cause a stack-based buffer overflow
(CVE-2012-4409).
* MCrypt contains multiple format string errors (CVE-2012-4426).
* MCrypt does not properly handle long file names, which could cause a
stack-based buffer overflow (CVE-2012-4527).

Impact
======

A remote attacker could entice a user to open a specially crafted file
using MCrypt, possibly resulting in execution of arbitrary code with
the privileges of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All MCrypt users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=app-crypt/mcrypt-2.6.8-r2”

References
==========

[ 1 ] CVE-2012-4409
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4409
[ 2 ] CVE-2012-4426
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4426
[ 3 ] CVE-2012-4527
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4527

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201405-19.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users’ machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2014 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons – Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5

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<pre style=”color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; white-space: pre-wrap;”>- – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 201405-19
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
<a class=”moz-txt-link-freetext” href=”http://security.gentoo.org/”>http://security.gentoo.org/</a>
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Severity: Normal
Title: MCrypt: User-assisted execution of arbitrary code
Date: May 18, 2014
Bugs: #434112, #440778
ID: 201405-19

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Synopsis
========

Multiple vulnerabilities have been found in MCrypt, allowing attackers
to execute arbitrary code or cause Denial of Service.

Background
==========

MCrypt is a replacement of the old unix crypt(1) utility.

Affected packages
=================

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 app-crypt/mcrypt < 2.6.8-r2 >= 2.6.8-r2

Description
===========

Multiple vulnerabilities have been discovered in MCrypt:

* A boundary error in MCrypt could cause a stack-based buffer overflow
(CVE-2012-4409).
* MCrypt contains multiple format string errors (CVE-2012-4426).
* MCrypt does not properly handle long file names, which could cause a
stack-based buffer overflow (CVE-2012-4527).

Impact
======

A remote attacker could entice a user to open a specially crafted file
using MCrypt, possibly resulting in execution of arbitrary code with
the privileges of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All MCrypt users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=app-crypt/mcrypt-2.6.8-r2”

References
==========

[ 1 ] CVE-2012-4409
<a class=”moz-txt-link-freetext” href=”http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4409″>http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4409</a>
[ 2 ] CVE-2012-4426
<a class=”moz-txt-link-freetext” href=”http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4426″>http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4426</a>
[ 3 ] CVE-2012-4527
<a class=”moz-txt-link-freetext” href=”http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4527″>http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4527</a>

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

<a class=”moz-txt-link-freetext” href=”http://security.gentoo.org/glsa/glsa-201405-19.xml”>http://security.gentoo.org/glsa/glsa-201405-19.xml</a>

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users’ machines is of utmost
importance to us. Any security concerns should be addressed to
<a class=”moz-txt-link-abbreviated” href=”mailto:security@gentoo.org”>security@gentoo.org</a> or alternatively, you may file a bug at
<a class=”moz-txt-link-freetext” href=”https://bugs.gentoo.org”>https://bugs.gentoo.org</a>.

License
=======

Copyright 2014 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons – Attribution / Share Alike license.

<a class=”moz-txt-link-freetext” href=”http://creativecommons.org/licenses/by-sa/2.5″>http://creativecommons.org/licenses/by-sa/2.5</a></pre>
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AutorMarko Stanec
Cert idNCERT-REF-2014-05-0031-ADV
CveCERT-CVE-DUMMY
ID izvornikaCERT-ORIGID-DUMMY
ProizvodCERT-DUMMY-PRODUCT
Izvorhttp://www.adobe.com/
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