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Add boundary check before memset, memcpy, strncpy #278

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Add boundary check before memset, memcpy, strncpy #278

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25 changes: 25 additions & 0 deletions src/iccpd/src/iccp_cli.c
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Original file line number Diff line number Diff line change
Expand Up @@ -117,7 +117,17 @@ int set_peer_link(int mid, const char* ifname)
csm->mlag_id, ifname);
}

if (MAX_L_PORT_NAME > strlen(csm->peer_itf_name))
{
ICCPD_LOG_ERR(__FUNCTION__, "MAX=%d is greater than peer_itf_name length=%d", MAX_L_PORT_NAME, strlen(csm->peer_itf_name));
return MCLAG_ERROR;
}
memset(csm->peer_itf_name, 0, MAX_L_PORT_NAME);
if (len > strlen(csm->peer_itf_name))
{
ICCPD_LOG_ERR(__FUNCTION__, "len=%d is greater than peer_itf_name length=%d", len, strlen(csm->peer_itf_name));
return MCLAG_ERROR;
}
memcpy(csm->peer_itf_name, ifname, len);

/* update peer-link link handler*/
Expand Down Expand Up @@ -208,8 +218,18 @@ int set_local_address(int mid, const char* addr)

len = strlen(addr);
memset(csm->sender_ip, 0, INET_ADDRSTRLEN);
if (len > strlen(csm->sender_ip))
{
ICCPD_LOG_ERR(__FUNCTION__, "len=%d is greater than sender_ip length=%d", len, strlen(csm->sender_ip));
return MCLAG_ERROR;
}
memcpy(csm->sender_ip, addr, len);
memset(csm->iccp_info.sender_name, 0, INET_ADDRSTRLEN);
if (len > strlen(csm->iccp_info.sender_name))
{
ICCPD_LOG_ERR(__FUNCTION__, "len=%d is greater than sender_name length=%d", len, strlen(csm->iccp_info.sender_name));
return MCLAG_ERROR;
}
memcpy(csm->iccp_info.sender_name, addr, len);

return 0;
Expand Down Expand Up @@ -268,6 +288,11 @@ int set_peer_address(int mid, const char* addr)
}

memset(csm->peer_ip, 0, INET_ADDRSTRLEN);
if (len > strlen(csm->peer_ip))
{
ICCPD_LOG_ERR(__FUNCTION__, "len=%d is greater than peer_ip length=%d", len, strlen(csm->peer_ip));
return MCLAG_ERROR;
}
memcpy(csm->peer_ip, addr, len);

return 0;
Expand Down
4 changes: 4 additions & 0 deletions src/iccpd/src/iccp_cmd.c
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Original file line number Diff line number Diff line change
Expand Up @@ -135,6 +135,10 @@ int iccp_config_from_command(char * line)
cp++;

slen = cp - start;
if (slen > strlen(token))
{
return MCLAG_ERROR;
}
strncpy(token, start, slen);
*(token + slen) = '\0';
iccp_cli_attach_mclag_domain_to_port_channel(mid, token);
Expand Down