drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen beliebiger Kommandos in klibc
Name: |
Ausführen beliebiger Kommandos in klibc |
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ID: |
201309-21 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Fr, 27. September 2013, 06:52 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1930 |
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Applikationen: |
Klibc |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201309-21 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: klibc: Command Injection Date: September 26, 2013 Bugs: #369075 ID: 201309-21
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Synopsis ========
A vulnerability in klibc could allow remote attackers to execute arbitrary shell code.
Background ==========
klibc is a minimalistic libc used for making an initramfs.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/klibc < 1.5.25 >= 1.5.25
Description ===========
The ipconfig utility in klibc writes DHCP options to /tmp/net-$DEVICE.conf, and this file is later sourced by other scripts to get defined variables. The options written to this file are not properly escaped.
Impact ======
A remote attacker could send a specially crafted DHCP reply, which could execute arbitrary shell code with the privileges of any process which sources DHCP options.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All klibc users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/klibc-1.5.25"
References ==========
[ 1 ] CVE-2011-1930 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1930
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201309-21.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 2013 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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