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Forbid repeated X.509 extensions

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This commit is contained in:
Manuel Pégourié-Gonnard 2014-11-12 17:47:28 +01:00
parent d681443f69
commit 8a5e3d4a40
3 changed files with 9 additions and 0 deletions
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1
ChangeLog
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@ -28,6 +28,7 @@ Changes
switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h). switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
* Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined. * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
* ssl_set_own_cert() now returns an error on key-certificate mismatch. * ssl_set_own_cert() now returns an error on key-certificate mismatch.
* Forbid repeated extensions in X.509 certificates.
= PolarSSL 1.3.9 released 2014-10-20 = PolarSSL 1.3.9 released 2014-10-20
Security Security

4
library/x509_crt.c
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@ -481,6 +481,10 @@ static int x509_get_crt_ext( unsigned char **p,
continue; continue;
} }
/* Forbid repeated extensions */
if( ( crt->ext_types & ext_type ) != 0 )
return( POLARSSL_ERR_X509_INVALID_EXTENSIONS );
crt->ext_types |= ext_type; crt->ext_types |= ext_type;
switch( ext_type ) switch( ext_type )

4
tests/suites/test_suite_x509parse.data
View File

@ -877,6 +877,10 @@ X509 Certificate ASN1 (SubjectAltName repeated)
depends_on:POLARSSL_ECP_C:POLARSSL_ECP_DP_SECP256R1_ENABLED depends_on:POLARSSL_ECP_C:POLARSSL_ECP_DP_SECP256R1_ENABLED
x509parse_crt:"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":"":POLARSSL_ERR_X509_INVALID_EXTENSIONS x509parse_crt:"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":"":POLARSSL_ERR_X509_INVALID_EXTENSIONS
X509 Certificate ASN1 (ExtKeyUsage repeated)
depends_on:POLARSSL_ECP_C:POLARSSL_ECP_DP_SECP256R1_ENABLED
x509parse_crt:"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":"":POLARSSL_ERR_X509_INVALID_EXTENSIONS
X509 Certificate ASN1 (correct pubkey, no sig_alg) X509 Certificate ASN1 (correct pubkey, no sig_alg)
depends_on:POLARSSL_RSA_C depends_on:POLARSSL_RSA_C
x509parse_crt:"308183308180a0030201008204deadbeef300d06092a864886f70d0101020500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374302a300d06092A864886F70D010101050003190030160210ffffffffffffffffffffffffffffffff0202ffff":"":POLARSSL_ERR_X509_INVALID_ALG + POLARSSL_ERR_ASN1_OUT_OF_DATA x509parse_crt:"308183308180a0030201008204deadbeef300d06092a864886f70d0101020500300c310a30080600130454657374301c170c303930313031303030303030170c303931323331323335393539300c310a30080600130454657374302a300d06092A864886F70D010101050003190030160210ffffffffffffffffffffffffffffffff0202ffff":"":POLARSSL_ERR_X509_INVALID_ALG + POLARSSL_ERR_ASN1_OUT_OF_DATA