Description
Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains an information disclosure vulnerability in the WASIp1 fd_readdir implementation that copies uninitialized struct padding into guest memory. Guests with a preopened directory can list entries to receive three bytes of leftover host stack or heap memory per directory entry.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
bytecodealliance wasmtime
Default version status: unaffected
0 to < 36.0.17affected36.0.17unaffected37.0.0 to < 48.0.4affected48.0.4unaffected49.0.0 to < 49.0.2affected49.0.2unaffected
pkg:cargo/wasmtime-wasi