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full-disclosure-uk: [Full-disclosure] [ GLSA 200705-25 ] file: I

[Full-disclosure] [ GLSA 200705-25 ] file: Integer overflow

From: Raphael Marichez <falco_at_nospam>
Date: Thu May 31 2007 - 18:30:40 GMT
To: gentoo-announce@gentoo.org

  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200705-25
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Severity: High Title: file: Integer overflow Date: May 31, 2007 Bugs: #179583 ID: 200705-25
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Synopsis


An integer overflow vulnerability has been reported in file allowing for the user-assisted execution of arbitrary code.

Background


file is a utility that guesses a file format by scanning binary data for patterns.

Affected packages



Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/file < 4.21 >= 4.21 ------------------------------------------------------------------- # Package 1 only applies to x86, PPC and HPPA users.

Description


Colin Percival from FreeBSD reported that the previous fix for the file_printf() buffer overflow introduced a new integer overflow.

Impact


A remote attacker could entice a user to run the file program on an overly large file (more than 1Gb) that would trigger an integer overflow on 32-bit systems, possibly leading to the execution of arbitrary code with the rights of the user running file.

Workaround


There is no known workaround at this time.

Resolution


Since file is a system package, all Gentoo users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/file-4.21"

References


  [ 1 ] CVE-2007-2799
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2799

Availability


This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200705-25.xml

Concerns?


Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.

License


Copyright 2007 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5



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