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8 lines
423 B
Plaintext
8 lines
423 B
Plaintext
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Security
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* Fix a buffer overflow in mbedtls_mpi_sub_abs() when calculating
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|A| - |B| where |B| is larger than |A| and has more limbs (so the
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function should return MBEDTLS_ERR_MPI_NEGATIVE_VALUE). Only
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applications calling mbedtls_mpi_sub_abs() directly are affected:
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all calls inside the library were safe since this function is
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only called with |A| >= |B|. Reported by Guido Vranken in #4042.
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