FreeBSD : emacs -- remote code execution vulnerability (c1e5f35e-f93d-11e1-b07f-00235a5f2c9a)

This script is Copyright (C) 2012-2015 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing one or more security-related
updates.

Description :

Chong Yidong reports :

Paul Ling has found a security flaw in the file-local variables code
in GNU Emacs.

When the Emacs user option `enable-local-variables' is set to `:safe'
(the default value is t), Emacs should automatically refuse to
evaluate `eval' forms in file-local variable sections. Due to the bug,
Emacs instead automatically evaluates such `eval' forms. Thus, if the
user changes the value of `enable-local-variables' to `:safe',
visiting a malicious file can cause automatic execution of arbitrary
Emacs Lisp code with the permissions of the user.

The bug is present in Emacs 23.2, 23.3, 23.4, and 24.1.

See also :

https://lists.gnu.org/archive/html/emacs-devel/2012-08/msg00802.html
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12155
http://www.nessus.org/u?ff14b93c

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 62023 ()

Bugtraq ID: 54969

CVE ID: CVE-2012-3479

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