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2ee0bb333c
Rewrite mbedtls_debug_print_mpi to be simpler and smaller. Leverage mbedtls_mpi_bitlen() instead of manually looking for the leading zeros. Fix #4608: the old code made an invalid memory dereference when X->n==0 (freshly initialized bignum with the value 0). Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
6 lines
264 B
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6 lines
264 B
Plaintext
Bugfix
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* Fix a crash in mbedtls_mpi_debug_mpi on a bignum having 0 limbs. This
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could notably be triggered by setting the TLS debug level to 3 or above
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and using a Montgomery curve for the key exchange. Reported by lhuang04
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in #4578. Fixes #4608.
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