drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberlauf in Screen
Name: |
Pufferüberlauf in Screen |
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ID: |
200611-01 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Fr, 3. November 2006, 14:38 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4573 |
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Applikationen: |
screen |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200611-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High Title: Screen: UTF-8 character handling vulnerability Date: November 03, 2006 Bugs: #152770 ID: 200611-01
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Synopsis ========
Screen contains an error in its UTF-8 character handling code that would allow a remote Denial of Service or possibly the remote execution of arbitrary code.
Background ==========
Screen is a full-screen window manager that multiplexes a physical terminal between several processes, typically interactive shells.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-misc/screen < 4.0.3 >= 4.0.3
Description ===========
cstone and Richard Felker discovered a flaw in Screen's UTF-8 combining character handling.
Impact ======
The vulnerability can be exploited by writing a special string of characters to a Screen window. A remote attacker could cause a Denial of Service or possibly execute arbitrary code with the privileges of the user running Screen through a program being run inside a Screen session, such as an IRC client or a mail client.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All Screen users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-misc/screen-4.0.3"
References ==========
[ 1 ] CVE-2006-4573 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2006-4573
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200611-01.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 http://bugs.gentoo.org.
License =======
Copyright 2006 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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