ssl/t1_lib.c:1619: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - [0, `s->s3->previous_client_finished_len` + `s->s3->previous_server_finished_len` + `pkt->written` + 24]):unsigned64 by call to `WPACKET_sub_memcpy__`.
Showing all 20 steps of the trace


ssl/t1_lib.c:1572:1: Parameter `pkt->written`
1570.   }
1571.   
1572. > int ssl_add_serverhello_tlsext(SSL *s, WPACKET *pkt, int *al)
1573.   {
1574.   #ifndef OPENSSL_NO_NEXTPROTONEG

ssl/t1_lib.c:1584:10: Call
1582.   #endif
1583.   
1584.       if (!WPACKET_start_sub_packet_u16(pkt)
                 ^
1585.               || !WPACKET_set_flags(pkt, WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH)) {
1586.           SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);

ssl/packet.c:252:1: Parameter `pkt->written`
  250.   }
  251.   
  252. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
  253.   {
  254.       WPACKET_SUB *sub;

ssl/t1_lib.c:1617:14: Call
1615.           tls1_get_formatlist(s, &plist, &plistlen);
1616.   
1617.           if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_ec_point_formats)
                     ^
1618.                   || !WPACKET_start_sub_packet_u16(pkt)
1619.                   || !WPACKET_sub_memcpy_u8(pkt, plist, plistlen)

ssl/packet.c:289:1: Parameter `pkt->written`
  287.   }
  288.   
  289. > int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)
  290.   {
  291.       unsigned char *data;

ssl/t1_lib.c:1618:21: Call
1616.   
1617.           if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_ec_point_formats)
1618.                   || !WPACKET_start_sub_packet_u16(pkt)
                            ^
1619.                   || !WPACKET_sub_memcpy_u8(pkt, plist, plistlen)
1620.                   || !WPACKET_close(pkt)) {

ssl/packet.c:252:1: Parameter `pkt->written`
  250.   }
  251.   
  252. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
  253.   {
  254.       WPACKET_SUB *sub;

ssl/t1_lib.c:1619:21: Call
1617.           if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_ec_point_formats)
1618.                   || !WPACKET_start_sub_packet_u16(pkt)
1619.                   || !WPACKET_sub_memcpy_u8(pkt, plist, plistlen)
                            ^
1620.                   || !WPACKET_close(pkt)) {
1621.               SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);

ssl/packet.c:348:10: Call
  346.                            size_t lenbytes)
  347.   {
  348.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
                  ^
  349.               || !WPACKET_memcpy(pkt, src, len)
  350.               || !WPACKET_close(pkt))

ssl/packet.c:252:1: Parameter `pkt->buf->length`
    250.   }
    251.   
    252. > int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)
    253.   {
    254.       WPACKET_SUB *sub;

ssl/packet.c:349:17: Call
  347.   {
  348.       if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)
  349.               || !WPACKET_memcpy(pkt, src, len)
                         ^
  350.               || !WPACKET_close(pkt))
  351.           return 0;

ssl/packet.c:330:1: Parameter `pkt->written`
    328.   }
    329.   
    330. > int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)
    331.   {
    332.       unsigned char *dest;

ssl/packet.c:337:10: Call
    335.           return 1;
    336.   
    337.       if (!WPACKET_allocate_bytes(pkt, len, &dest))
                    ^
    338.           return 0;
    339.   

ssl/packet.c:15:1: Parameter `pkt->written`
      13.   #define DEFAULT_BUF_SIZE    256
      14.   
      15. > int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
      16.   {
      17.       if (!WPACKET_reserve_bytes(pkt, len, allocbytes))

ssl/packet.c:17:10: Call
      15.   int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
      16.   {
      17.       if (!WPACKET_reserve_bytes(pkt, len, allocbytes))
                     ^
      18.           return 0;
      19.   

ssl/packet.c:39:1: <LHS trace>
37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
38.   
39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
40.   {
41.       /* Internal API, so should not fail */

ssl/packet.c:39:1: Parameter `pkt->buf->length`
        37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
        38.   
        39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        40.   {
        41.       /* Internal API, so should not fail */

ssl/packet.c:39:1: <RHS trace>
37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
38.   
39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
40.   {
41.       /* Internal API, so should not fail */

ssl/packet.c:39:1: Parameter `len`
        37.                        ? (p)->staticbuf : (unsigned char *)(p)->buf->data)
        38.   
        39. > int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
        40.   {
        41.       /* Internal API, so should not fail */

ssl/packet.c:49:36: Binary operation: ([0, +oo] - [0, s->s3->previous_client_finished_len + s->s3->previous_server_finished_len + pkt->written + 24]):unsigned64 by call to `WPACKET_sub_memcpy__` 
        47.           return 0;
        48.   
        49.       if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
                                                 ^
        50.           size_t newlen;
        51.           size_t reflen;

int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)
{
    assert(pkt->subs != NULL && len != 0);
    if (pkt->subs == NULL || len == 0)
        return 0;
    if (pkt->maxsize - pkt->written < len)
        return 0;
    if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {
        size_t newlen;
        size_t reflen;
        reflen = (len > pkt->buf->length) ? len : pkt->buf->length;
        if (reflen > SIZE_MAX / 2) {
            newlen = SIZE_MAX;
        } else {
            newlen = reflen * 2;
            if (newlen < DEFAULT_BUF_SIZE)
                newlen = DEFAULT_BUF_SIZE;
        }
        if (BUF_MEM_grow(pkt->buf, newlen) == 0)
            return 0;
    }
    if (allocbytes != NULL)
        *allocbytes = WPACKET_get_curr(pkt);
    return 1;
}
['int ssl_add_serverhello_tlsext(SSL *s, WPACKET *pkt, int *al)\n{\n#ifndef OPENSSL_NO_NEXTPROTONEG\n    int next_proto_neg_seen;\n#endif\n#ifndef OPENSSL_NO_EC\n    unsigned long alg_k = s->s3->tmp.new_cipher->algorithm_mkey;\n    unsigned long alg_a = s->s3->tmp.new_cipher->algorithm_auth;\n    int using_ecc = (alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA);\n    using_ecc = using_ecc && (s->session->tlsext_ecpointformatlist != NULL);\n#endif\n    if (!WPACKET_start_sub_packet_u16(pkt)\n            || !WPACKET_set_flags(pkt, WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH)) {\n        SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    if (s->s3->send_connection_binding &&\n            !ssl_add_serverhello_renegotiate_ext(s, pkt)) {\n        SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    if (s->version == SSL3_VERSION)\n        goto done;\n    if (!s->hit && s->servername_done == 1\n            && s->session->tlsext_hostname != NULL) {\n        if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_server_name)\n                || !WPACKET_put_bytes_u16(pkt, 0)) {\n            SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n    }\n#ifndef OPENSSL_NO_EC\n    if (using_ecc) {\n        const unsigned char *plist;\n        size_t plistlen;\n        tls1_get_formatlist(s, &plist, &plistlen);\n        if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_ec_point_formats)\n                || !WPACKET_start_sub_packet_u16(pkt)\n                || !WPACKET_sub_memcpy_u8(pkt, plist, plistlen)\n                || !WPACKET_close(pkt)) {\n            SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n    }\n#endif\n    if (s->tlsext_ticket_expected && tls_use_ticket(s)) {\n        if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_session_ticket)\n                || !WPACKET_put_bytes_u16(pkt, 0)) {\n            SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n    } else {\n        s->tlsext_ticket_expected = 0;\n    }\n    if (s->tlsext_status_expected) {\n        if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_status_request)\n                || !WPACKET_put_bytes_u16(pkt, 0)) {\n            SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n    }\n#ifndef OPENSSL_NO_SRTP\n    if (SSL_IS_DTLS(s) && s->srtp_profile) {\n        if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_use_srtp)\n                || !WPACKET_start_sub_packet_u16(pkt)\n                || !WPACKET_put_bytes_u16(pkt, 2)\n                || !WPACKET_put_bytes_u16(pkt, s->srtp_profile->id)\n                || !WPACKET_put_bytes_u8(pkt, 0)\n                || !WPACKET_close(pkt)) {\n            SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n    }\n#endif\n    if (((s->s3->tmp.new_cipher->id & 0xFFFF) == 0x80\n         || (s->s3->tmp.new_cipher->id & 0xFFFF) == 0x81)\n        && (SSL_get_options(s) & SSL_OP_CRYPTOPRO_TLSEXT_BUG)) {\n        const unsigned char cryptopro_ext[36] = {\n            0xfd, 0xe8,\n            0x00, 0x20,\n            0x30, 0x1e, 0x30, 0x08, 0x06, 0x06, 0x2a, 0x85,\n            0x03, 0x02, 0x02, 0x09, 0x30, 0x08, 0x06, 0x06,\n            0x2a, 0x85, 0x03, 0x02, 0x02, 0x16, 0x30, 0x08,\n            0x06, 0x06, 0x2a, 0x85, 0x03, 0x02, 0x02, 0x17\n        };\n        if (!WPACKET_memcpy(pkt, cryptopro_ext, sizeof(cryptopro_ext))) {\n            SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n    }\n#ifndef OPENSSL_NO_NEXTPROTONEG\n    next_proto_neg_seen = s->s3->next_proto_neg_seen;\n    s->s3->next_proto_neg_seen = 0;\n    if (next_proto_neg_seen && s->ctx->next_protos_advertised_cb) {\n        const unsigned char *npa;\n        unsigned int npalen;\n        int r;\n        r = s->ctx->next_protos_advertised_cb(s, &npa, &npalen,\n                                              s->\n                                              ctx->next_protos_advertised_cb_arg);\n        if (r == SSL_TLSEXT_ERR_OK) {\n            if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_next_proto_neg)\n                    || !WPACKET_sub_memcpy_u16(pkt, npa, npalen)) {\n                SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n                return 0;\n            }\n            s->s3->next_proto_neg_seen = 1;\n        }\n    }\n#endif\n    if (SSL_IS_TLS13(s) && !s->hit && !add_client_key_share_ext(s, pkt, al))\n        return 0;\n    if (!custom_ext_add(s, 1, pkt, al)) {\n        SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    if (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC) {\n        if (s->s3->tmp.new_cipher->algorithm_mac == SSL_AEAD\n            || s->s3->tmp.new_cipher->algorithm_enc == SSL_RC4\n            || s->s3->tmp.new_cipher->algorithm_enc == SSL_eGOST2814789CNT\n            || s->s3->tmp.new_cipher->algorithm_enc == SSL_eGOST2814789CNT12)\n            s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC;\n        else {\n            if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_encrypt_then_mac)\n                    || !WPACKET_put_bytes_u16(pkt, 0)) {\n                SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n                return 0;\n            }\n        }\n    }\n    if (s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS) {\n        if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_extended_master_secret)\n                || !WPACKET_put_bytes_u16(pkt, 0)) {\n            SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n    }\n    if (s->s3->alpn_selected != NULL) {\n        if (!WPACKET_put_bytes_u16(pkt,\n                    TLSEXT_TYPE_application_layer_protocol_negotiation)\n                || !WPACKET_start_sub_packet_u16(pkt)\n                || !WPACKET_start_sub_packet_u16(pkt)\n                || !WPACKET_sub_memcpy_u8(pkt, s->s3->alpn_selected,\n                                          s->s3->alpn_selected_len)\n                || !WPACKET_close(pkt)\n                || !WPACKET_close(pkt)) {\n            SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n            return 0;\n        }\n    }\n done:\n    if (!WPACKET_close(pkt)) {\n        SSLerr(SSL_F_SSL_ADD_SERVERHELLO_TLSEXT, ERR_R_INTERNAL_ERROR);\n        return 0;\n    }\n    return 1;\n}', 'int WPACKET_start_sub_packet_len__(WPACKET *pkt, size_t lenbytes)\n{\n    WPACKET_SUB *sub;\n    unsigned char *lenchars;\n    assert(pkt->subs != NULL);\n    if (pkt->subs == NULL)\n        return 0;\n    sub = OPENSSL_zalloc(sizeof(*sub));\n    if (sub == NULL)\n        return 0;\n    sub->parent = pkt->subs;\n    pkt->subs = sub;\n    sub->pwritten = pkt->written + lenbytes;\n    sub->lenbytes = lenbytes;\n    if (lenbytes == 0) {\n        sub->packet_len = 0;\n        return 1;\n    }\n    if (!WPACKET_allocate_bytes(pkt, lenbytes, &lenchars))\n        return 0;\n    sub->packet_len = lenchars - GETBUF(pkt);\n    return 1;\n}', 'int WPACKET_put_bytes__(WPACKET *pkt, unsigned int val, size_t size)\n{\n    unsigned char *data;\n    assert(size <= sizeof(unsigned int));\n    if (size > sizeof(unsigned int)\n            || !WPACKET_allocate_bytes(pkt, size, &data)\n            || !put_value(data, val, size))\n        return 0;\n    return 1;\n}', 'int WPACKET_sub_memcpy__(WPACKET *pkt, const void *src, size_t len,\n                         size_t lenbytes)\n{\n    if (!WPACKET_start_sub_packet_len__(pkt, lenbytes)\n            || !WPACKET_memcpy(pkt, src, len)\n            || !WPACKET_close(pkt))\n        return 0;\n    return 1;\n}', 'int WPACKET_memcpy(WPACKET *pkt, const void *src, size_t len)\n{\n    unsigned char *dest;\n    if (len == 0)\n        return 1;\n    if (!WPACKET_allocate_bytes(pkt, len, &dest))\n        return 0;\n    memcpy(dest, src, len);\n    return 1;\n}', 'int WPACKET_allocate_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)\n{\n    if (!WPACKET_reserve_bytes(pkt, len, allocbytes))\n        return 0;\n    pkt->written += len;\n    pkt->curr += len;\n    return 1;\n}', 'int WPACKET_reserve_bytes(WPACKET *pkt, size_t len, unsigned char **allocbytes)\n{\n    assert(pkt->subs != NULL && len != 0);\n    if (pkt->subs == NULL || len == 0)\n        return 0;\n    if (pkt->maxsize - pkt->written < len)\n        return 0;\n    if (pkt->staticbuf == NULL && (pkt->buf->length - pkt->written < len)) {\n        size_t newlen;\n        size_t reflen;\n        reflen = (len > pkt->buf->length) ? len : pkt->buf->length;\n        if (reflen > SIZE_MAX / 2) {\n            newlen = SIZE_MAX;\n        } else {\n            newlen = reflen * 2;\n            if (newlen < DEFAULT_BUF_SIZE)\n                newlen = DEFAULT_BUF_SIZE;\n        }\n        if (BUF_MEM_grow(pkt->buf, newlen) == 0)\n            return 0;\n    }\n    if (allocbytes != NULL)\n        *allocbytes = WPACKET_get_curr(pkt);\n    return 1;\n}']