drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen beliebiger Kommandos in libpng
Name: |
Ausführen beliebiger Kommandos in libpng |
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ID: |
201701-74 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mo, 30. Januar 2017, 07:02 |
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Referenzen: |
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10087 |
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Applikationen: |
libpng |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --Ef40j06DSftjEuXurV9hSaB4BhqOGiFB2 Content-Type: multipart/mixed; boundary="ettmH7KvJnSPRH7XA1DOIij9vFHbDP4Lw"; protected-headers="v1" From: Thomas Deutschmann <whissi@gentoo.org> To: gentoo-announce@lists.gentoo.org Message-ID: <809e58ed-5f55-cb85-85a0-ad1fac2766f8@gentoo.org> Subject: [ GLSA 201701-74 ] libpng: Remote execution of arbitrary code
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201701-74 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: libpng: Remote execution of arbitrary code Date: January 29, 2017 Bugs: #604082 ID: 201701-74
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Synopsis ========
A null pointer dereference in libpng might allow remote attackers to execute arbitrary code.
Background ==========
libpng is a standard library used to process PNG (Portable Network Graphics) images. It is used by several programs, including web browsers and potentially server processes.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-libs/libpng < 1.6.27 >= 1.6.27 >= 1.5.28 >= 1.2.57
Description ===========
A null pointer dereference was discovered in libpng in the png_push_save_buffer function. In order to be vulnerable, an application has to load a text chunk into the PNG structure, then delete all text, then add another text chunk to the same PNG structure, which seems to be an unlikely sequence, but it is possible.
Impact ======
A remote attacker, by enticing a user to process a specially crafted PNG file, could execute arbitrary code with the privileges of the process.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All libpng 1.6.x users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.6.27"
All libpng 1.5.x users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.5.28:1.5"
All libpng 1.2.x users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.57:1.2"
References ==========
[ 1 ] CVE-2016-10087 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10087
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201701-74
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 2017 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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