drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in perl
Name: |
Zwei Probleme in perl
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ID: |
200502-13 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Sa, 12. Februar 2005, 12:00 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0155
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0156 |
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Applikationen: |
Perl |
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Originalnachricht |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200502-13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High Title: Perl: Vulnerabilities in perl-suid wrapper Date: February 11, 2005 Bugs: #80460 ID: 200502-13
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Synopsis ========
Vulnerabilities leading to file overwriting and code execution with elevated privileges have been discovered in the perl-suid wrapper.
Background ==========
Perl is a stable, cross-platform programming language created by Larry Wall. The perl-suid wrapper allows the use of setuid perl scripts, i.e. user-callable Perl scripts which have elevated privileges. This function is enabled only if you have the perlsuid USE flag set.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-lang/perl < 5.8.6-r3 >= 5.8.6-r3 *>= 5.8.5-r4 *>= 5.8.4-r3 *>= 5.8.2-r3
Description ===========
perl-suid scripts honor the PERLIO_DEBUG environment variable and write to that file with elevated privileges (CAN-2005-0155). Furthermore, calling a perl-suid script with a very long path while PERLIO_DEBUG is set could trigger a buffer overflow (CAN-2005-0156).
Impact ======
A local attacker could set the PERLIO_DEBUG environment variable and call existing perl-suid scripts, resulting in file overwriting and potentially the execution of arbitrary code with root privileges.
Workaround ==========
You are not vulnerable if you do not have the perlsuid USE flag set or do not use perl-suid scripts.
Resolution ==========
All Perl users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose dev-lang/perl
References ==========
[ 1 ] CAN-2005-0155 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0155 [ 2 ] CAN-2005-0156 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0156
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200502-13.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 2005 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/2.0
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