[ GLSA 200709-17 ] teTeX: Multiple buffer overflows

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  Severity: Normal
     Title: teTeX: Multiple buffer overflows
      Date: September 27, 2007
      Bugs: #170861, #182055, #188172
        ID: 200709-17

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Synopsis

Multiple vulnerabilities have been discovered in teTeX, allowing for user-assisted execution of arbitrary code.

Background

teTeX is a complete TeX distribution for editing documents.

Affected packages

     Package         /   Vulnerable   /                     Unaffected
    -------------------------------------------------------------------
  1  app-text/tetex      < 3.0_p1-r4                      >= 3.0_p1-r4

Description

Mark Richters discovered a buffer overflow in the open_sty() function in file mkind.c. Other vulnerabilities have also been discovered in the same file but might not be exploitable (CVE-2007-0650). Tetex also includes vulnerable code from GD library (GLSA 200708-05), and from Xpdf (CVE-2007-3387).

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Impact

A remote attacker could entice a user to process a specially crafted PNG, GIF or PDF file, or to execute "makeindex" on an overly long filename. In both cases, this could lead to the remote execution of arbitrary code with the privileges of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All teTeX users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-text/tetex-3.0_p1-r4"

References

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  [ 1 ] CVE-2007-0650
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0650   [ 2 ] CVE-2007-3387
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3387   [ 3 ] GLSA-200708-05
        http://www.gentoo.org/security/en/glsa/glsa-200708-05.xml

Availability

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

  http://security.gentoo.org/glsa/glsa-200709-17.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).

Can we help you?

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