mirrors/foot
1
0
Fork 0
mirror of https://codeberg.org/dnkl/foot.git synced 2026-04-15 08:21:03 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

csi: clamp color index for ‘CSI 38/48 ; 5 ; idx m’ sequences

Browse source 
Indexed color values are stored in the cell attributes as color
indices (into the 256-color table). However, the index from the CSI
was not validated in any way, meaning you can do something like this:

  echo -e ‘\e[38:5:1024m CRASH \e[m’

and foot will crash on an out-of-bounds access.

Fix by clamping the color index.

Closes #1111
This commit is contained in:
Daniel Eklöf 2022-07-22 10:44:33 +02:00
parent 0c60bb3f29
commit 87e4004960
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F
2 changed files with 8 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
CHANGELOG.md
View file

@ -82,10 +82,14 @@
support the offered mime-types ([#1092][1092]).
* Keyboard enter/leave events being ignored if there is no keymap
([#1097][1097]).
* Crash when application emitted an invalid `CSI 38;5;<idx>m`, `CSI
38:5:<idx>m`, `CSI 48;5;<idx>m` or `CSI 48:5:<idx>m` sequence
([#1111][1111]).
[1055]: https://codeberg.org/dnkl/foot/issues/1055
[1092]: https://codeberg.org/dnkl/foot/issues/1092
[1097]: https://codeberg.org/dnkl/foot/issues/1097
[1111]: https://codeberg.org/dnkl/foot/issues/1111
### Security