diff options
| -rw-r--r-- | crypto/ec/ec_asn1.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/crypto/ec/ec_asn1.c b/crypto/ec/ec_asn1.c index 6323131a22..60550c7539 100644 --- a/crypto/ec/ec_asn1.c +++ b/crypto/ec/ec_asn1.c @@ -687,6 +687,16 @@ EC_GROUP *EC_GROUP_new_from_ecparameters(const ECPARAMETERS *params) /* extract seed (optional) */ if (params->curve->seed != NULL) { + /* + * This happens for instance with + * fuzz/corpora/asn1/65cf44e85614c62f10cf3b7a7184c26293a19e4a + * and causes the OPENSSL_malloc below to choke on the + * zero length allocation request. + */ + if (params->curve->seed->length == 0) { + ERR_raise(ERR_LIB_EC, EC_R_ASN1_ERROR); + goto err; + } OPENSSL_free(ret->seed); if ((ret->seed = OPENSSL_malloc(params->curve->seed->length)) == NULL) { ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE); |