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Merge branch 'iotssl-1071-ca-flags'

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Fixes a regression introduced by an earlier commit that modified
x509_crt_verify_top() to ensure that valid certificates that are after past or
future valid in the chain are processed. However the change introduced a change
in behaviour that caused the verification flags MBEDTLS_X509_BADCERT_EXPIRED and
MBEDTLS_BADCERT_FUTURE to always be set whenever there is a failure in the
verification regardless of the cause.

The fix maintains both behaviours:

 * Ensure that valid certificates after future and past are verified
 * Ensure that the correct verification flags are set.
This commit is contained in:
Simon Butcher 2017-02-27 19:06:05 +00:00
commit fc794ff2b7
5 changed files with 88 additions and 12 deletions
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@ -13,6 +13,11 @@ Security
Introduced by interoperability fix for #513.
Bugfix
* Fix output certificate verification flags set by x509_crt_verify_top() when
traversing a chain of trusted CA. The issue would cause both flags,
MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
set when the verification conditions are not met regardless of the cause.
Found by Harm Verhagen and inestlerode. #665 #561
* Fix the redefinition of macro ssl_set_bio to an undefined symbol
mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
Found by omlib-lin. #673