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Gentoo Linux Security Advisory GLSA 200612-21 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Ruby: Denial of Service vulnerability |
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Date: December 20, 2006 |
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Bugs: #157048 |
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ID: 200612-21 |
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Synopsis |
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======== |
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|
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The Ruby cgi.rb CGI library is vulnerable to a Denial of Service |
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attack. |
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Background |
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========== |
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Ruby is a dynamic, open source programming language with a focus on |
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simplicity and productivity. |
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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 dev-lang/ruby < 1.8.5_p2 >= 1.8.5_p2 |
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Description |
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=========== |
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|
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The read_multipart function of the CGI library shipped with Ruby |
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(cgi.rb) does not properly check boundaries in MIME multipart content. |
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This is a different issue than GLSA 200611-12. |
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Impact |
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====== |
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|
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The vulnerability can be exploited by sending the cgi.rb library a |
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crafted HTTP request with multipart MIME encoding that contains a |
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malformed MIME boundary specifier. Successful exploitation of the |
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vulnerability causes the library to go into an infinite loop. |
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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 Ruby users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-lang/ruby-1.8.5_p2" |
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References |
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========== |
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[ 1 ] CVE-2006-6303 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6303 |
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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-200612-21.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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http://bugs.gentoo.org. |
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License |
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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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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.5 |
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