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Gentoo Linux Security Advisory GLSA 200606-07 |
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http://security.gentoo.org/ |
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|
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Severity: High |
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Title: Vixie Cron: Privilege Escalation |
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Date: June 09, 2006 |
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Bugs: #134194 |
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ID: 200606-07 |
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|
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Synopsis |
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======== |
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|
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Vixie Cron allows local users to execute programs as root. |
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|
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Background |
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========== |
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|
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Vixie Cron is a command scheduler with extended syntax over cron. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 sys-process/vixie-cron < 4.1-r9 >= 4.1-r9 |
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|
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Description |
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=========== |
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|
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Roman Veretelnikov discovered that Vixie Cron fails to properly check |
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whether it can drop privileges accordingly if setuid() in do_command.c |
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fails due to a user exceeding assigned resource limits. |
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|
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Impact |
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====== |
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|
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Local users can execute code with root privileges by deliberately |
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exceeding their assigned resource limits and then starting a command |
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through Vixie Cron. This requires resource limits to be in place on the |
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machine. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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|
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All Vixie Cron users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=sys-process/vixie-cron-4.1-r9" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2006-2607 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2607 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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http://security.gentoo.org/glsa/glsa-200606-07.xml |
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|
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2006 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.5 |