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Gentoo Linux Security Advisory GLSA 201204-06 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: PolicyKit: Multiple vulnerabilities |
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Date: April 17, 2012 |
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Bugs: #314535, #364973, #401513 |
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ID: 201204-06 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities have been found in PolicyKit, the worst of |
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which may allow a local attacker to gain root privileges. |
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|
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Background |
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========== |
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|
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PolicyKit is a toolkit for controlling privileges for system-wide |
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services. |
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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-auth/polkit < 0.104-r1 >= 0.104-r1 |
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Description |
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=========== |
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|
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Multiple vulnerabilities have been found in PolicyKit: |
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|
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* Error messages in the pkexec utility disclose the existence of local |
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files (CVE-2010-0750). |
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* The pkexec utility initially checks the effective user ID of its |
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parent process for authorization, instead of checking the real user |
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ID (CVE-2011-1485). |
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* Members of the "wheel" group are able to execute commands as an |
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administrator without a password (CVE-2011-4945). |
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|
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Impact |
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====== |
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|
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A local attacker could gain elevated privileges or sensitive |
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information. |
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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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Resolution |
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========== |
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All PolicyKit users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=sys-auth/polkit-0.104-r1" |
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References |
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========== |
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|
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[ 1 ] CVE-2010-0750 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0750 |
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[ 2 ] CVE-2011-1485 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1485 |
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[ 3 ] CVE-2011-4945 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4945 |
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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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http://security.gentoo.org/glsa/glsa-201204-06.xml |
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Concerns? |
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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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https://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 2012 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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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 |
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