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LibGfx/TIFF: Reject images that declare a sample with abnormal bit depth

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Anything with a bit depth of zero or greater than 32 is outside our
working range, so let's reject them.
This commit is contained in:
Lucas CHOLLET 2023-12-30 00:19:30 -05:00 committed by Andrew Kaster
parent ba84af7c22
commit 4e09ee1f2f
Notes: sideshowbarker 2024-07-17 02:05:41 +09:00 
Author: https://github.com/LucasChollet
Commit: https://github.com/SerenityOS/serenity/commit/4e09ee1f2f
Pull-request: https://github.com/SerenityOS/serenity/pull/22513
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/nico ✅
1 changed files with 3 additions and 0 deletions
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3
Userland/Libraries/LibGfx/ImageFormats/TIFFLoader.cpp
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@ -47,6 +47,9 @@ public:
if (m_metadata.strip_offsets()->size() != m_metadata.strip_byte_counts()->size())
return Error::from_string_literal("TIFFImageDecoderPlugin: StripsOffset and StripByteCount have different sizes");
if (any_of(*m_metadata.bits_per_sample(), [](auto bit_depth) { return bit_depth == 0 || bit_depth > 32; }))
return Error::from_string_literal("TIFFImageDecoderPlugin: Invalid value in BitsPerSample");
return {};
}