CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS
Percentile
86.0%
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.