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Insecure Library Loading
Moderately critical

GNU Emacs Local Variable Processing Vulnerability

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Release Date:  2007-11-05    Views:  10,280

Secunia Advisory SA27508

Where:

From remote

Impact:

System access

Solution Status:

Vendor Workaround

Software:

CVE Reference(s):

Description


Drake Wilson has reported a vulnerability in GNU Emacs, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to an error in the "hack-local-variables" function where local variables within a file are processed in an insecure manner. This can be exploited to e.g. modify a user's user-init-file and execute arbitrary Emacs Lisp code when a specially crafted file is opened.

Successful exploitation requires that "enable-local-variables" is set to ":safe".

The vulnerability is reported in version 22.1. Other versions may also be affected.


Solution:
Fixed in the CVS repository.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Drake Wilson

Original Advisory:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=449008

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: GNU Emacs Local Variable Processing Vulnerability

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