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Gentoo Linux Security Advisory GLSA 200703-26 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: file: Integer underflow |
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Date: March 30, 2007 |
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Bugs: #171452 |
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ID: 200703-26 |
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Synopsis |
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======== |
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|
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A buffer underflow vulnerability has been reported in file allowing for |
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the user-assisted execution of arbitrary code. |
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Background |
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========== |
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|
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file is a utility that guesses a file format by scanning binary data |
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for patterns. |
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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-apps/file < 4.20 >= 4.20 |
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Description |
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=========== |
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|
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Jean-Sébastien Guay-Leroux reported an integer underflow in |
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file_printf function. |
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Impact |
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====== |
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|
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A remote attacker could entice a user to run the "file" program on a |
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specially crafted file that would trigger a heap-based buffer overflow |
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possibly leading to the execution of arbitrary code with the rights of |
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the user running "file". Note that this vulnerability could be also |
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triggered through an automatic file scanner like amavisd-new. |
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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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Since file is a system package, all Gentoo users should upgrade to the |
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latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=sys-apps/file-4.20" |
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References |
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========== |
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[ 1 ] CVE-2007-1536 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1536 |
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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-200703-26.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 2007 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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http://creativecommons.org/licenses/by-sa/2.5 |
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