diff options
Diffstat (limited to 'crypto/asn1')
| -rw-r--r-- | crypto/asn1/a_print.c | 7 | ||||
| -rw-r--r-- | crypto/asn1/asn1_lib.c | 11 |
2 files changed, 12 insertions, 6 deletions
diff --git a/crypto/asn1/a_print.c b/crypto/asn1/a_print.c index 85a631a27a..f86623fdfa 100644 --- a/crypto/asn1/a_print.c +++ b/crypto/asn1/a_print.c @@ -18,12 +18,13 @@ int ASN1_PRINTABLE_type(const unsigned char *s, int len) int ia5 = 0; int t61 = 0; - if (len <= 0) - len = -1; if (s == NULL) return V_ASN1_PRINTABLESTRING; - while ((*s) && (len-- != 0)) { + if (len < 0) + len = strlen((const char *)s); + + while (len-- > 0) { c = *(s++); if (!ossl_isasn1print(c)) ia5 = 1; diff --git a/crypto/asn1/asn1_lib.c b/crypto/asn1/asn1_lib.c index 3d99d1383d..b9b7ad8e9e 100644 --- a/crypto/asn1/asn1_lib.c +++ b/crypto/asn1/asn1_lib.c @@ -294,7 +294,7 @@ int ASN1_STRING_set(ASN1_STRING *str, const void *_data, int len_in) c = str->data; #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION /* No NUL terminator in fuzzing builds */ - str->data = OPENSSL_realloc(c, len); + str->data = OPENSSL_realloc(c, len != 0 ? len : 1); #else str->data = OPENSSL_realloc(c, len + 1); #endif @@ -307,7 +307,11 @@ int ASN1_STRING_set(ASN1_STRING *str, const void *_data, int len_in) str->length = len; if (data != NULL) { memcpy(str->data, data, len); -#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION +#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION + /* Set the unused byte to something non NUL and printable. */ + if (len == 0) + str->data[len] = '~'; +#else /* * Add a NUL terminator. This should not be necessary - but we add it as * a safety precaution @@ -375,7 +379,8 @@ int ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b) i = (a->length - b->length); if (i == 0) { - i = memcmp(a->data, b->data, a->length); + if (a->length != 0) + i = memcmp(a->data, b->data, a->length); if (i == 0) return a->type - b->type; else |