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vim-patch:6d91227267a5

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runtime(gpg): Mark dangerous use-embedded-filename with WarningMsg

The syntax highlighter is likely to encourage people to use the listed
commands.

But `use-embedded-filename` is a dangerous option that can cause GnuPG
to write arbitrary data to arbitrary files whenever GnuPG encounters
malicious data.

GnuPG upstream explicitly warns against using this option:

https://dev.gnupg.org/T4500
https://dev.gnupg.org/T6972

However, since this is a valid option, we cannot just drop it from the
syntax script. Instead, let's mark it with the WarningMsg highlighting
to make it obvious, that this option is different (and should not be
used for security reasons).

closes: vim/vim#13961

6d91227267

Co-authored-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
This commit is contained in:
Christian Clason 2024-02-11 18:29:08 +01:00
parent ed1b66bd99
commit 46390635cd
1 changed files with 16 additions and 5 deletions
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21
runtime/syntax/gpg.vim
View File

@ -1,9 +1,13 @@
" Vim syntax file
" Language: gpg(1) configuration file
" Maintainer: This file is looking for a maintainer!
" Previous Maintainer: Nikolai Weibull <now@bitwi.se>
" Latest Revision: 2010-10-14
" Updated: 2023-01-23 @ObserverOfTime: added a couple of keywords
" Latest Revision: 2024-02-11
" Updated:
" 2023-01-23 @ObserverOfTime: added a couple of keywords
" 2023-03-21 Todd Zullinger <tmz@pobox.com>: sync with gnupg-2.4.0
" 2024-02-10 Daniel Kahn Gillmor <dkg@fifthhorseman.net>:
" mark use-embedded-filename as warning for security reasons
if exists("b:current_syntax")
finish
@ -21,7 +25,7 @@ syn region gpgComment contained display oneline start='#' end='$'
syn match gpgID contained display '\<\(0x\)\=\x\{8,}\>'
syn match gpgBegin display '^' skipwhite nextgroup=gpgComment,gpgOption,gpgCommand
syn match gpgBegin display '^' skipwhite nextgroup=gpgComment,gpgOption,gpgOptionDeprecated,gpgCommand
syn keyword gpgCommand contained skipwhite nextgroup=gpgArg
\ change-passphrase check-sig check-signatures
@ -41,6 +45,7 @@ syn keyword gpgCommand contained skipwhite nextgroup=gpgArg
\ quick-set-expire quick-set-primary-uid quick-sign-key
\ quick-update-pref receive-keys recv-keys refresh-keys
\ search-keys show-key show-keys sign-key tofu-policy
syn keyword gpgCommand contained skipwhite nextgroup=gpgArgError
\ card-edit card-status change-pin check-trustdb
\ clear-sign clearsign dearmor dearmour decrypt
@ -97,6 +102,7 @@ syn keyword gpgOption contained skipwhite nextgroup=gpgArg
\ trusted-key trust-model try-secret-key ttyname
\ ttytype ungroup user verify-options weak-digest
\ xauthority
syn keyword gpgOption contained skipwhite nextgroup=gpgArgError
\ allow-freeform-uid allow-multiple-messages
\ allow-multisig-verification allow-non-selfsigned-uid
@ -145,7 +151,7 @@ syn keyword gpgOption contained skipwhite nextgroup=gpgArgError
\ no-sk-comments no-skip-hidden-recipients
\ no-symkey-cache not-dash-escaped no-textmode
\ no-throw-keyids no-tty no-use-agent
\ no-use-embedded-filename no-utf8-strings no-verbose
\ no-utf8-strings no-verbose
\ no-version only-sign-text-ids openpgp
\ override-compliance-check pgp6 pgp7 pgp8
\ preserve-permissions print-dane-records quiet
@ -155,7 +161,7 @@ syn keyword gpgOption contained skipwhite nextgroup=gpgArgError
\ show-notation show-photos show-policy-url
\ show-session-key sk-comments skip-hidden-recipients
\ skip-verify textmode throw-keyids try-all-secrets
\ unwrap use-agent use-embedded-filename use-keyboxd
\ unwrap use-agent use-keyboxd
\ use-only-openpgp-card utf8-strings verbose version
\ warranty with-colons with-fingerprint
\ with-icao-spelling with-key-data with-keygrip
@ -164,6 +170,10 @@ syn keyword gpgOption contained skipwhite nextgroup=gpgArgError
\ with-subkey-fingerprints with-tofu-info with-wkd-hash
\ yes
" depcrated for security reasons
syn keyword gpgOptionDeprecated contained skipwhite nextgroup=gpgArgError
\ use-embedded-filename no-use-embedded-filename
syn match gpgArg contained display '\S\+\(\s\+\S\+\)*' contains=gpgID
syn match gpgArgError contained display '\S\+\(\s\+\S\+\)*'
@ -171,6 +181,7 @@ hi def link gpgComment Comment
hi def link gpgTodo Todo
hi def link gpgID Number
hi def link gpgOption Keyword
hi def link gpgOptionDeprecated WarningMsg
hi def link gpgCommand Error
hi def link gpgArgError Error