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Secunia Security Advisory 27508

Secunia Security Advisory 27508
Posted Nov 5, 2007
Authored by Secunia | Site secunia.com

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

tags | advisory
SHA-256 | 2e443000a85b71d9a8327204dc3b487b5d7c5474150d77e523b49e2216b00a46

Secunia Security Advisory 27508

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2003: 2,700 advisories published
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TITLE:
GNU Emacs Local Variable Processing Vulnerability

SECUNIA ADVISORY ID:
SA27508

VERIFY ADVISORY:
http://secunia.com/advisories/27508/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
GNU Emacs 22.x
http://secunia.com/product/16432/

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.
http://cvs.savannah.gnu.org/viewvc/emacs/emacs/lisp/files.el?r1=1.896.2.28&r2=1.896.2.29

PROVIDED AND/OR DISCOVERED BY:
Drake Wilson

ORIGINAL ADVISORY:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=449008

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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