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annotate runtime/syntax/srt.vim @ 33865:8cdb69ea3711 v9.0.2143

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patch 9.0.2143: [security]: buffer-overflow in ex_substitute Commit: https://github.com/vim/vim/commit/abfa13ebe92d81aaf66669c428d767847b577453 Author: Christian Brabandt <cb@256bit.org> Date: Thu Nov 30 11:32:18 2023 +0100 patch 9.0.2143: [security]: buffer-overflow in ex_substitute Problem: [security]: buffer-overflow in ex_substitute Solution: clear memory after allocating When allocating the new_start pointer in ex_substitute() the memory pointer points to some garbage that the following for loop in ex_cmds.c:4743 confuses and causes it to accessing the new_start pointer beyond it's size, leading to a buffer-overlow. So fix this by using alloc_clear() instead of alloc(), which will clear the memory by NUL and therefore cause the loop to terminate correctly. Reported by @henices, thanks! closes: #13596 Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Sun, 10 Dec 2023 15:16:05 +0100
parents 0827d3d6d8c0
children
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1 " Vim syntax file
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2 " Language: SubRip
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3 " Maintainer: ObserverOfTime <chronobserver@disroot.org>
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4 " Filenames: *.srt
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5 " Last Change: 2022 Sep 12
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6
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7 if exists('b:current_syntax')
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8 finish
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9 endif
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10
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11 syn spell toplevel
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12
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13 syn cluster srtSpecial contains=srtBold,srtItalics,srtStrikethrough,srtUnderline,srtFont,srtTag,srtEscape
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14
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15 " Number
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16 syn match srtNumber /^\d\+$/ contains=@NoSpell
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17
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18 " Range
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19 syn match srtRange /\d\d:\d\d:\d\d[,.]\d\d\d --> \d\d:\d\d:\d\d[,.]\d\d\d/ skipwhite contains=srtArrow,srtTime nextgroup=srtCoordinates
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20 syn match srtArrow /-->/ contained contains=@NoSpell
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21 syn match srtTime /\d\d:\d\d:\d\d[,.]\d\d\d/ contained contains=@NoSpell
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22 syn match srtCoordinates /X1:\d\+ X2:\d\+ Y1:\d\+ Y2:\d\+/ contained contains=@NoSpell
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23
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24 " Bold
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25 syn region srtBold matchgroup=srtFormat start=+<b>+ end=+</b>+ contains=@srtSpecial
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26 syn region srtBold matchgroup=srtFormat start=+{b}+ end=+{/b}+ contains=@srtSpecial
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27
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28 " Italics
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29 syn region srtItalics matchgroup=srtFormat start=+<i>+ end=+</i>+ contains=@srtSpecial
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30 syn region srtItalics matchgroup=srtFormat start=+{i}+ end=+{/i}+ contains=@srtSpecial
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31
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32 " Strikethrough
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33 syn region srtStrikethrough matchgroup=srtFormat start=+<s>+ end=+</s>+ contains=@srtSpecial
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34 syn region srtStrikethrough matchgroup=srtFormat start=+{s}+ end=+{/s}+ contains=@srtSpecial
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35
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36 " Underline
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37 syn region srtUnderline matchgroup=srtFormat start=+<u>+ end=+</u>+ contains=@srtSpecial
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38 syn region srtUnderline matchgroup=srtFormat start=+{u}+ end=+{/u}+ contains=@srtSpecial
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39
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40 " Font
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41 syn region srtFont matchgroup=srtFormat start=+<font[^>]\{-}>+ end=+</font>+ contains=@srtSpecial
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42
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43 " ASS tags
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44 syn match srtTag /{\\[^}]\{1,}}/ contains=@NoSpell
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45
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46 " Special characters
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47 syn match srtEscape /\\[nNh]/ contains=@NoSpell
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48
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49 hi def link srtArrow Delimiter
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50 hi def link srtCoordinates Label
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51 hi def link srtEscape SpecialChar
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52 hi def link srtFormat Special
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53 hi def link srtNumber Number
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54 hi def link srtTag PreProc
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55 hi def link srtTime String
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56
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57 hi srtBold cterm=bold gui=bold
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58 hi srtItalics cterm=italic gui=italic
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59 hi srtStrikethrough cterm=strikethrough gui=strikethrough
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60 hi srtUnderline cterm=underline gui=underline
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61
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62 let b:current_syntax = 'srt'