diff options
Diffstat (limited to 'crypto/asn1/a_verify.c')
| -rw-r--r-- | crypto/asn1/a_verify.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/crypto/asn1/a_verify.c b/crypto/asn1/a_verify.c index fc84cd3d19..78dde1d053 100644 --- a/crypto/asn1/a_verify.c +++ b/crypto/asn1/a_verify.c @@ -90,6 +90,12 @@ int ASN1_verify(i2d_of_void *i2d, X509_ALGOR *a, ASN1_BIT_STRING *signature, ASN1err(ASN1_F_ASN1_VERIFY,ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM); goto err; } + + if (signature->type == V_ASN1_BIT_STRING && signature->flags & 0x7) + { + ASN1err(ASN1_F_ASN1_VERIFY, ASN1_R_INVALID_BIT_STRING_BITS_LEFT); + goto err; + } inl=i2d(data,NULL); buf_in=OPENSSL_malloc((unsigned int)inl); @@ -146,6 +152,12 @@ int ASN1_item_verify(const ASN1_ITEM *it, X509_ALGOR *a, return -1; } + if (signature->type == V_ASN1_BIT_STRING && signature->flags & 0x7) + { + ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ASN1_R_INVALID_BIT_STRING_BITS_LEFT); + return -1; + } + EVP_MD_CTX_init(&ctx); /* Convert signature OID into digest and public key OIDs */ |