PT-2017-13481 · Gnu+4 · Gnu Emacs+4
Charles A. Roelli
·
Publicado
2017-09-12
·
Atualizado
2019-10-03
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CVE-2017-14482
CVSS v3.1
8.8
Alta
| Vetor | AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
GNU Emacs versions prior to 25.3
Description
The issue allows remote attackers to execute arbitrary code via email with crafted "Content-Type: text/enriched" data containing an x-display XML element that specifies execution of shell commands. This is related to an unsafe text/enriched extension in lisp/textmodes/enriched.el and unsafe Gnus support for enriched and richtext inline MIME objects in lisp/gnus/mm-view.el. An Emacs user can be instantly compromised by reading a crafted email message or Usenet news article.
Recommendations
For GNU Emacs versions prior to 25.3, update to version 25.3 or later to resolve the issue. As a temporary workaround, consider disabling the enriched text mode in lisp/textmodes/enriched.el and restricting Gnus support for enriched and richtext inline MIME objects in lisp/gnus/mm-view.el to minimize the risk of exploitation. Avoid using the x-display XML element in email clients until the issue is resolved.
Correção
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Identificadores relacionados
Produtos afetados
Centos
Gnu Emacs
Red Hat
Suse
Ubuntu