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HIGH

GHSA-cxcc-q839-2cw9

columnar: `Read` on uninitialized buffer may cause UB (ColumnarReadExt::read_typed_vec())

Details

Affected versions of this crate passes an uninitialized buffer to a user-provided `Read` implementation (`ColumnarReadExt::read_typed_vec()`). Arbitrary `Read` implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.

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Affected packages

crates.io/columnar
Introduced in: 0

No fixed version published yet for columnar. Pin to a known-safe version or switch to an alternative.

References