drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in pam_krb5
Name: |
Zwei Probleme in pam_krb5 |
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ID: |
200903-39 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mi, 25. März 2009, 23:49 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0360
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0361 |
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Applikationen: |
pam_krb5 |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200903-39 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High Title: pam_krb5: Privilege escalation Date: March 25, 2009 Bugs: #257075 ID: 200903-39
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Synopsis ========
Two vulnerabilities in pam_krb5 might allow local users to elevate their privileges or overwrite arbitrary files.
Background ==========
pam_krb5 is a a Kerberos v5 PAM module.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-auth/pam_krb5 < 3.12 >= 3.12
Description ===========
The following vulnerabilities were discovered:
* pam_krb5 does not properly initialize the Kerberos libraries for setuid use (CVE-2009-0360).
* Derek Chan reported that calls to pam_setcred() are not properly handled when running setuid (CVE-2009-0361).
Impact ======
A local attacker could set an environment variable to point to a specially crafted Kerberos configuration file and launch a PAM-based setuid application to elevate privileges, or change ownership and overwrite arbitrary files.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All pam_krb5 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-auth/pam_krb5-3.12"
References ==========
[ 1 ] CVE-2009-0360 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0360 [ 2 ] CVE-2009-0361 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0361
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200903-39.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 2009 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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