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Gentoo Linux Security Advisory GLSA 201410-01 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: Bash: Multiple vulnerabilities |
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Date: October 04, 2014 |
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Bugs: #523742, #524256 |
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ID: 201410-01 |
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Synopsis |
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======== |
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Multiple parsing flaws in Bash could allow remote attackers to inject |
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code or cause a Denial of Service condition. |
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Background |
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========== |
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Bash is the standard GNU Bourne Again SHell. |
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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 app-shells/bash < 4.2_p52 *>= 3.1_p22 |
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*>= 3.2_p56 |
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*>= 4.0_p43 |
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*>= 4.1_p16 |
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>= 4.2_p52 |
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Description |
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=========== |
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|
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Florian Weimer, Todd Sabin, Michal Zalewski et al. discovered further |
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parsing flaws in Bash. The unaffected Gentoo packages listed in this |
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GLSA contain the official patches to fix the issues tracked as |
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CVE-2014-6277, CVE-2014-7186, and CVE-2014-7187. Furthermore, the |
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official patch known as "function prefix patch" is included which |
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prevents the exploitation of CVE-2014-6278. |
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Impact |
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====== |
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A remote attacker could exploit these vulnerabilities to execute |
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arbitrary commands or cause a Denial of Service condition via various |
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vectors. |
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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 Bash 3.1 users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-shells/bash-3.1_p22:3.1" |
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All Bash 3.2 users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-shells/bash-3.2_p56:3.2" |
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All Bash 4.0 users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-shells/bash-4.0_p43:4.0" |
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All Bash 4.1 users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-shells/bash-4.1_p16:4.1" |
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All Bash 4.2 users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-shells/bash-4.2_p52" |
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References |
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========== |
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[ 1 ] CVE-2014-6277 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-6277 |
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[ 2 ] CVE-2014-6278 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-6278 |
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[ 3 ] CVE-2014-7186 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-7186 |
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[ 4 ] CVE-2014-7187 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-7187 |
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Availability |
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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-201410-01.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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License |
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======= |
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Copyright 2014 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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