IF THIS TEST CRASHES
Giflib/libungif have a long history of bugs, so if this script crashes and you aren't running version 4.1.4 of giflib or libungif then UPGRADE.
Imager versions through 1.030 for Perl allow a heap out of bounds (OOB) write on crafted multi-frame GIF files. Imager::File::GIF's i_readgif_multi_low allocates a single per-row buffer GifRow sized for the GIF's global screen width 'SWidth' and reuses it across every image in the file. The page-match branch validates Image.Width + Image.Left > SWidth before each DGifGetLine write, but the parallel skip-image branch at imgif.c:790-805 calls DGifGetLine(GifFile, GifRow, Width) with no such check.
IF THIS TEST CRASHES
Giflib/libungif have a long history of bugs, so if this script crashes and you aren't running version 4.1.4 of giflib or libungif then UPGRADE.
To install Imager, copy and paste the appropriate command in to your terminal.
cpanm Imagerperl -MCPAN -e shell
install ImagerFor more information on module installation, please visit the detailed CPAN module installation guide.
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