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To: gentoo-announce@lists.gentoo.org
From: Aaron Bauman <bman@gentoo.org>
Subject: [gentoo-announce] [ GLSA 201612-07 ] dpkg: Arbitrary code execution
Message-ID: <c350f824-5f6f-6cb4-4ab1-acf1ee2faf96@gentoo.org>
Date: Sun, 4 Dec 2016 20:02:05 +0900
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From: Aaron Bauman <bman@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <c350f824-5f6f-6cb4-4ab1-acf1ee2faf96@gentoo.org>
Subject: [ GLSA 201612-07 ] dpkg: Arbitrary code execution

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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201612-07
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: dpkg: Arbitrary code execution
     Date: December 04, 2016
     Bugs: #567258
       ID: 201612-07

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D

A vulnerability was discovered in dpkg which could potentially lead to
arbitrary code execution.

Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Debian package management system.

Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-arch/dpkg               < 1.17.26                 >=3D 1.17.26=20

Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Gentoo Linux developer, Hanno B=C3=B6ck, discovered an off-by-one error i=
n
the dpkg-deb component of dpkg, the Debian package management system,
which triggers a stack-based buffer overflow.

Impact
=3D=3D=3D=3D=3D=3D

An attacker could potentially execute arbitrary code if an user or an
automated system were tricked into processing a specially crafted
Debian binary package (.deb).

Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

There is no known workaround at this time.

Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

All dpkg users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=3Dapp-arch/dpkg-1.17.26"

References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

[ 1 ] CVE-2015-7805
      http://nvd.nist.gov/nvd.cfm?cvename=3DCVE-2015-7805

Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

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

 https://security.gentoo.org/glsa/201612-07

Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D

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
=3D=3D=3D=3D=3D=3D=3D

Copyright 2016 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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-8">
  </head>
  <body bgcolor=3D"#FFFFFF" text=3D"#000000">
    <p>
      <meta http-equiv=3D"content-type" content=3D"text/html; charset=3Du=
tf-8">
    </p>
    <pre style=3D"color: rgb(0, 0, 0); font-style: normal; font-variant-l=
igatures: normal; font-variant-caps: normal; font-weight: normal; letter-=
spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-tr=
ansform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0=
px; word-wrap: break-word; white-space: pre-wrap;">- - - - - - - - - - - =
- - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201612-07
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           <a class=3D"moz-txt-link-freet=
ext" href=3D"https://security.gentoo.org/">https://security.gentoo.org/</=
a>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: dpkg: Arbitrary code execution
     Date: December 04, 2016
     Bugs: #567258
       ID: 201612-07

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=3D=3D=3D=3D=3D=3D=3D=3D

A vulnerability was discovered in dpkg which could potentially lead to
arbitrary code execution.

Background
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Debian package management system.

Affected packages
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-arch/dpkg               &lt; 1.17.26                 &gt;=3D 1.1=
7.26=20

Description
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

Gentoo Linux developer, Hanno B=C3=B6ck, discovered an off-by-one error i=
n
the dpkg-deb component of dpkg, the Debian package management system,
which triggers a stack-based buffer overflow.

Impact
=3D=3D=3D=3D=3D=3D

An attacker could potentially execute arbitrary code if an user or an
automated system were tricked into processing a specially crafted
Debian binary package (.deb).

Workaround
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

There is no known workaround at this time.

Resolution
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

All dpkg users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose "&gt;=3Dapp-arch/dpkg-1.17.26"

References
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

[ 1 ] CVE-2015-7805
      <a class=3D"moz-txt-link-freetext" href=3D"http://nvd.nist.gov/nvd.=
cfm?cvename=3DCVE-2015-7805">http://nvd.nist.gov/nvd.cfm?cvename=3DCVE-20=
15-7805</a>

Availability
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

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

 <a class=3D"moz-txt-link-freetext" href=3D"https://security.gentoo.org/g=
lsa/201612-07">https://security.gentoo.org/glsa/201612-07</a>

Concerns?
=3D=3D=3D=3D=3D=3D=3D=3D=3D

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=3D"moz-txt-link-abbreviated" href=3D"mailto:security@gentoo.org"=
>security@gentoo.org</a> or alternatively, you may file a bug at
<a class=3D"moz-txt-link-freetext" href=3D"https://bugs.gentoo.org">https=
://bugs.gentoo.org</a>.

License
=3D=3D=3D=3D=3D=3D=3D

Copyright 2016 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=3D"moz-txt-link-freetext" href=3D"http://creativecommons.org/lic=
enses/by-sa/2.5">http://creativecommons.org/licenses/by-sa/2.5</a></pre>
  </body>
</html>

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