drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Bash
Name: |
Zwei Probleme in Bash |
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ID: |
201210-05 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Sa, 20. Oktober 2012, 10:47 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5374
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3410 |
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Applikationen: |
GNU Bash |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201210-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Bash: Multiple vulnerabilities Date: October 20, 2012 Bugs: #251319, #431850 ID: 201210-05
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Synopsis ========
Two vulnerabilities have been found in Bash, the worst of which may allow execution of arbitrary code.
Background ==========
Bash is the standard GNU Bourne Again SHell.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-shells/bash < 4.2_p37 >= 4.2_p37
Description ===========
Two vulnerabilities have been found in Bash:
* Bash example scripts do not handle temporary files securely (CVE-2008-5374). * Improper bounds checking in Bash could cause a stack-based buffer overflow (CVE-2012-3410).
Impact ======
A remote attacker could entice a user to open a specially crafted Bash script, possibly resulting in execution of arbitrary code with the privileges of the process, or a Denial of Service condition of the Bash executable.
A local attacker may be able to perform symlink attacks to overwrite arbitrary files with the privileges of the user running the application or bypass shell access restrictions.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All Bash users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-shells/bash-4.2_p37"
References ==========
[ 1 ] CVE-2008-5374 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-5374 [ 2 ] CVE-2012-3410 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3410
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201210-05.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 2012 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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