GHSA-66m8-c62j-h6v5Medium· 6.2▾ Sunlitjxl-oxide: `FrameBuffer::new` creates out-of-bounds slices on overflow
▾ Sunlit zone — Low / medium · no exploitation signal
impact 34.1 · likelihood 0 · exploitation 0
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jxl-oxide exposes a public safe API that can construct an undersized FrameBuffer due to unchecked usize multiplication, which immediately trigger panic while initializing the buffer in normal decoding path.
Additionally, calling the safe grouped buffer accessors afterward can create invalid oversized slices from a much smaller allocation, causing undefined behavior; however normal decoding path never reaches UB, because these methods are never used within jxl-oxide.
On 32-bit platforms this can cause panic by accessing out-of-range indices, making it a DoS vulnerability.
jxl-oxide <= 0.12.5Upgrade to a patched release:
jxl-oxide 0.12.6Connected by shared product, vendor, weakness, or advisory.
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