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crypto/hd: make DerivePrivateKeyForPath error and not panic on trailing slashes #8607
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crypto/hd: make DerivePrivateKeyForPath error and not panic on trailing slashes #8607
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…ng slashes Detected during my audit, right before fuzzing, the code that checked for presence of hyphens per path segment assumed that the part would always be non-empty. However, with paths such as: * m/4/ * /44/ * m/4/// it'd panic with a runtime slice out of bounds. With this new change, we now: * firstly strip the right trailing slash * on finding any empty segments of a path return an error Fixes #8557
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This PR fixes a security issue, so kindly also backport :-) |
alessio
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February 17, 2021 10:20
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Good one!
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@Mergifyio backport release/v0.41.x |
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…ng slashes (#8607) Detected during my audit, right before fuzzing, the code that checked for presence of hyphens per path segment assumed that the part would always be non-empty. However, with paths such as: * m/4/ * /44/ * m/4/// it'd panic with a runtime slice out of bounds. With this new change, we now: * firstly strip the right trailing slash * on finding any empty segments of a path return an error Fixes #8557 (cherry picked from commit f970056)
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…ng slashes (#8607) (#8608) Detected during my audit, right before fuzzing, the code that checked for presence of hyphens per path segment assumed that the part would always be non-empty. However, with paths such as: * m/4/ * /44/ * m/4/// it'd panic with a runtime slice out of bounds. With this new change, we now: * firstly strip the right trailing slash * on finding any empty segments of a path return an error Fixes #8557 (cherry picked from commit f970056) Co-authored-by: Emmanuel T Odeke <emmanuel@orijtech.com>
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Detected during my audit, right before fuzzing, the code that
checked for presence of hyphens per path segment assumed that
the part would always be non-empty. However, with paths such as:
it'd panic with a runtime slice out of bounds.
With this new change, we now:
Fixes #8557
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