diff options
Diffstat (limited to 'openwrt/package/samba/patches/200-security.patch')
| -rw-r--r-- | openwrt/package/samba/patches/200-security.patch | 606 |
1 files changed, 0 insertions, 606 deletions
diff --git a/openwrt/package/samba/patches/200-security.patch b/openwrt/package/samba/patches/200-security.patch deleted file mode 100644 index 8e51549e1a..0000000000 --- a/openwrt/package/samba/patches/200-security.patch +++ /dev/null @@ -1,606 +0,0 @@ -diff -ruN samba-2.0.10.orig/source/include/smb.h samba-2.0.10/source/include/smb.h ---- samba-2.0.10.orig/source/include/smb.h 2006-03-06 22:25:08.000000000 +0100 -+++ samba-2.0.10/source/include/smb.h 2006-03-06 22:25:53.000000000 +0100 -@@ -272,6 +272,7 @@ - #define ERRlock 33 /* Lock request conflicts with existing lock */ - #define ERRunsup 50 /* Request unsupported, returned by Win 95, RJS 20Jun98 */ - #define ERRfilexists 80 /* File in operation already exists */ -+#define ERRinvalidparam 87 - #define ERRcannotopen 110 /* Cannot open the file specified */ - #define ERRunknownlevel 124 - #define ERRrename 183 -@@ -1911,4 +1912,7 @@ - - #define SAFE_NETBIOS_CHARS ". -_" - -+#ifndef SAFE_FREE -+#define SAFE_FREE(x) do { if ((x) != NULL) {free((x)); (x)=NULL;} } while(0) -+#endif - #endif /* _SMB_H */ -diff -ruN samba-2.0.10.orig/source/include/version.h samba-2.0.10/source/include/version.h ---- samba-2.0.10.orig/source/include/version.h 2001-06-23 15:23:59.000000000 +0200 -+++ samba-2.0.10/source/include/version.h 2006-03-06 22:25:53.000000000 +0100 -@@ -1 +1 @@ --#define VERSION "2.0.10" -+#define VERSION "2.0.10-security-rollup" -diff -ruN samba-2.0.10.orig/source/smbd/filename.c samba-2.0.10/source/smbd/filename.c ---- samba-2.0.10.orig/source/smbd/filename.c 2000-03-16 23:59:44.000000000 +0100 -+++ samba-2.0.10/source/smbd/filename.c 2006-03-06 22:25:53.000000000 +0100 -@@ -172,7 +172,7 @@ - * StrnCpy always null terminates. - */ - -- StrnCpy(orig_name, full_orig_name, namelen); -+ StrnCpy(orig_name, full_orig_name, MIN(namelen, sizeof(orig_name)-1)); - if(!case_sensitive) - strupper( orig_name ); - -diff -ruN samba-2.0.10.orig/source/smbd/ipc.c samba-2.0.10/source/smbd/ipc.c ---- samba-2.0.10.orig/source/smbd/ipc.c 2006-03-06 22:25:08.000000000 +0100 -+++ samba-2.0.10/source/smbd/ipc.c 2006-03-06 22:25:53.000000000 +0100 -@@ -3556,18 +3556,18 @@ - uint16 *setup=NULL; - int outsize = 0; - uint16 vuid = SVAL(inbuf,smb_uid); -- int tpscnt = SVAL(inbuf,smb_vwv0); -- int tdscnt = SVAL(inbuf,smb_vwv1); -- int mprcnt = SVAL(inbuf,smb_vwv2); -- int mdrcnt = SVAL(inbuf,smb_vwv3); -- int msrcnt = CVAL(inbuf,smb_vwv4); -+ unsigned int tpscnt = SVAL(inbuf,smb_vwv0); -+ unsigned int tdscnt = SVAL(inbuf,smb_vwv1); -+ unsigned int mprcnt = SVAL(inbuf,smb_vwv2); -+ unsigned int mdrcnt = SVAL(inbuf,smb_vwv3); -+ unsigned int msrcnt = CVAL(inbuf,smb_vwv4); - BOOL close_on_completion = BITSETW(inbuf+smb_vwv5,0); - BOOL one_way = BITSETW(inbuf+smb_vwv5,1); -- int pscnt = SVAL(inbuf,smb_vwv9); -- int psoff = SVAL(inbuf,smb_vwv10); -- int dscnt = SVAL(inbuf,smb_vwv11); -- int dsoff = SVAL(inbuf,smb_vwv12); -- int suwcnt = CVAL(inbuf,smb_vwv13); -+ unsigned int pscnt = SVAL(inbuf,smb_vwv9); -+ unsigned int psoff = SVAL(inbuf,smb_vwv10); -+ unsigned int dscnt = SVAL(inbuf,smb_vwv11); -+ unsigned int dsoff = SVAL(inbuf,smb_vwv12); -+ unsigned int suwcnt = CVAL(inbuf,smb_vwv13); - - memset(name, '\0',sizeof(name)); - fstrcpy(name,smb_buf(inbuf)); -@@ -3578,26 +3578,44 @@ - - if (tdscnt) { - if((data = (char *)malloc(tdscnt)) == NULL) { -- DEBUG(0,("reply_trans: data malloc fail for %d bytes !\n", tdscnt)); -+ DEBUG(0,("reply_trans: data malloc fail for %u bytes !\n", tdscnt)); - return(ERROR(ERRDOS,ERRnomem)); - } -+ if ((dsoff+dscnt < dsoff) || (dsoff+dscnt < dscnt)) -+ goto bad_param; -+ if (smb_base(inbuf)+dsoff+dscnt > inbuf + size) -+ goto bad_param; -+ - memcpy(data,smb_base(inbuf)+dsoff,dscnt); - } - - if (tpscnt) { - if((params = (char *)malloc(tpscnt)) == NULL) { -- DEBUG(0,("reply_trans: param malloc fail for %d bytes !\n", tpscnt)); -+ DEBUG(0,("reply_trans: param malloc fail for %u bytes !\n", tpscnt)); -+ SAFE_FREE(data); - return(ERROR(ERRDOS,ERRnomem)); - } -+ if ((psoff+pscnt < psoff) || (psoff+pscnt < pscnt)) -+ goto bad_param; -+ if (smb_base(inbuf)+psoff+pscnt > inbuf + size) -+ goto bad_param; -+ - memcpy(params,smb_base(inbuf)+psoff,pscnt); - } - - if (suwcnt) { - int i; - if((setup = (uint16 *)malloc(suwcnt*sizeof(uint16))) == NULL) { -- DEBUG(0,("reply_trans: setup malloc fail for %d bytes !\n", (int)(suwcnt * sizeof(uint16)))); -- return(ERROR(ERRDOS,ERRnomem)); -- } -+ DEBUG(0,("reply_trans: setup malloc fail for %u bytes !\n", (unsigned int)(suwcnt * sizeof(uint16)))); -+ SAFE_FREE(data); -+ SAFE_FREE(params); -+ return(ERROR(ERRDOS,ERRnomem)); -+ } -+ if (inbuf+smb_vwv14+(suwcnt*SIZEOFWORD) > inbuf + size) -+ goto bad_param; -+ if ((smb_vwv14+(suwcnt*SIZEOFWORD) < smb_vwv14) || (smb_vwv14+(suwcnt*SIZEOFWORD) < (suwcnt*SIZEOFWORD))) -+ goto bad_param; -+ - for (i=0;i<suwcnt;i++) - setup[i] = SVAL(inbuf,smb_vwv14+i*SIZEOFWORD); - } -@@ -3614,7 +3632,7 @@ - /* receive the rest of the trans packet */ - while (pscnt < tpscnt || dscnt < tdscnt) { - BOOL ret; -- int pcnt,poff,dcnt,doff,pdisp,ddisp; -+ unsigned int pcnt,poff,dcnt,doff,pdisp,ddisp; - - ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT); - -@@ -3625,19 +3643,19 @@ - DEBUG(0,("reply_trans: %s in getting secondary trans response.\n", - (smb_read_error == READ_ERROR) ? "error" : "timeout" )); - } -- if (params) -- free(params); -- if (data) -- free(data); -- if (setup) -- free(setup); -+ SAFE_FREE(params); -+ SAFE_FREE(data); -+ SAFE_FREE(setup); - return(ERROR(ERRSRV,ERRerror)); - } - - show_msg(inbuf); - -- tpscnt = SVAL(inbuf,smb_vwv0); -- tdscnt = SVAL(inbuf,smb_vwv1); -+ /* Revise total_params and total_data in case they have changed downwards */ -+ if (SVAL(inbuf,smb_vwv0) < tpscnt) -+ tpscnt = SVAL(inbuf,smb_vwv0); -+ if (SVAL(inbuf,smb_vwv1) < tdscnt) -+ tdscnt = SVAL(inbuf,smb_vwv1); - - pcnt = SVAL(inbuf,smb_vwv2); - poff = SVAL(inbuf,smb_vwv3); -@@ -3650,17 +3668,36 @@ - pscnt += pcnt; - dscnt += dcnt; - -- if (dscnt > tdscnt || pscnt > tpscnt) { -- exit_server("invalid trans parameters\n"); -- } -+ if (dscnt > tdscnt || pscnt > tpscnt) -+ goto bad_param; - -- if (pcnt) -+ if (pcnt) { -+ if (pdisp+pcnt >= tpscnt) -+ goto bad_param; -+ if ((pdisp+pcnt < pdisp) || (pdisp+pcnt < pcnt)) -+ goto bad_param; -+ if (smb_base(inbuf) + poff + pcnt >= inbuf + bufsize) -+ goto bad_param; -+ if (params + pdisp < params) -+ goto bad_param; -+ - memcpy(params+pdisp,smb_base(inbuf)+poff,pcnt); -- if (dcnt) -+ } -+ -+ if (dcnt) { -+ if (ddisp+dcnt >= tdscnt) -+ goto bad_param; -+ if ((ddisp+dcnt < ddisp) || (ddisp+dcnt < dcnt)) -+ goto bad_param; -+ if (smb_base(inbuf) + doff + dcnt >= inbuf + bufsize) -+ goto bad_param; -+ if (data + ddisp < data) -+ goto bad_param; -+ - memcpy(data+ddisp,smb_base(inbuf)+doff,dcnt); -+ } - } -- -- -+ - DEBUG(3,("trans <%s> data=%d params=%d setup=%d\n", - name,tdscnt,tpscnt,suwcnt)); - -@@ -3700,4 +3737,12 @@ - return(ERROR(ERRSRV,ERRnosupport)); - - return(outsize); -+ -+ bad_param: -+ -+ DEBUG(0,("reply_trans: invalid trans parameters\n")); -+ SAFE_FREE(data); -+ SAFE_FREE(params); -+ SAFE_FREE(setup); -+ return(ERROR(ERRSRV,ERRerror)); - } -diff -ruN samba-2.0.10.orig/source/smbd/nttrans.c samba-2.0.10/source/smbd/nttrans.c ---- samba-2.0.10.orig/source/smbd/nttrans.c 2000-04-24 19:27:30.000000000 +0200 -+++ samba-2.0.10/source/smbd/nttrans.c 2006-03-06 22:25:53.000000000 +0100 -@@ -2575,11 +2575,14 @@ - params = (char *)malloc(total_parameter_count); - if (total_data_count > 0) - data = (char *)malloc(total_data_count); -- -+ - if ((total_parameter_count && !params) || (total_data_count && !data) || - (setup_count && !setup)) { -+ SAFE_FREE(setup); -+ SAFE_FREE(params); -+ SAFE_FREE(data); - DEBUG(0,("reply_nttrans : Out of memory\n")); -- return(ERROR(ERRDOS,ERRnomem)); -+ return ERROR(ERRDOS,ERRnomem); - } - - /* Copy the param and data bytes sent with this request into -@@ -2588,64 +2591,112 @@ - num_data_sofar = data_count; - - if (parameter_count > total_parameter_count || data_count > total_data_count) -- exit_server("reply_nttrans: invalid sizes in packet.\n"); -+ goto bad_param; - - if(setup) { -- memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count); - DEBUG(10,("reply_nttrans: setup_count = %d\n", setup_count)); -- dump_data(10, setup, setup_count); -+ if ((smb_nt_SetupStart + setup_count < smb_nt_SetupStart) || -+ (smb_nt_SetupStart + setup_count < setup_count)) -+ goto bad_param; -+ if (smb_nt_SetupStart + setup_count > length) -+ goto bad_param; -+ -+ memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count); - } - if(params) { -- memcpy( params, smb_base(inbuf) + parameter_offset, parameter_count); - DEBUG(10,("reply_nttrans: parameter_count = %d\n", parameter_count)); -- dump_data(10, params, parameter_count); -+ if ((parameter_offset + parameter_count < parameter_offset) || -+ (parameter_offset + parameter_count < parameter_count)) -+ goto bad_param; -+ if (smb_base(inbuf) + parameter_offset + parameter_count > inbuf + length) -+ goto bad_param; -+ -+ memcpy( params, smb_base(inbuf) + parameter_offset, parameter_count); - } - if(data) { -- memcpy( data, smb_base(inbuf) + data_offset, data_count); - DEBUG(10,("reply_nttrans: data_count = %d\n",data_count)); -- dump_data(10, data, data_count); -+ if ((data_offset + data_count < data_offset) || (data_offset + data_count < data_count)) -+ goto bad_param; -+ if (smb_base(inbuf) + data_offset + data_count > inbuf + length) -+ goto bad_param; -+ -+ memcpy( data, smb_base(inbuf) + data_offset, data_count); -+ - } - - if(num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) { - /* We need to send an interim response then receive the rest - of the parameter/data bytes */ - outsize = set_message(outbuf,0,0,True); -- send_smb(Client,outbuf); -+ if (!send_smb(Client,outbuf)) -+ exit_server("reply_nttrans: send_smb failed."); - - while( num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) { - BOOL ret; -- -+ uint32 parameter_displacement; -+ uint32 data_displacement; -+ - ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT); -- -+ - if((ret && (CVAL(inbuf, smb_com) != SMBnttranss)) || !ret) { -- outsize = set_message(outbuf,0,0,True); -- if(ret) { -- DEBUG(0,("reply_nttrans: Invalid secondary nttrans packet\n")); -- } else { -- DEBUG(0,("reply_nttrans: %s in getting secondary nttrans response.\n", -- (smb_read_error == READ_ERROR) ? "error" : "timeout" )); -+ outsize = set_message(outbuf,0,0,True); -+ if(ret) { -+ DEBUG(0,("reply_nttrans: Invalid secondary nttrans packet\n")); -+ } else { -+ DEBUG(0,("reply_nttrans: %s in getting secondary nttrans response.\n", -+ (smb_read_error == READ_ERROR) ? "error" : "timeout" )); - } -- if(params) -- free(params); -- if(data) -- free(data); -- if(setup) -- free(setup); -- return(ERROR(ERRSRV,ERRerror)); -+ goto bad_param; - } - - /* Revise total_params and total_data in case they have changed downwards */ -- total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount); -- total_data_count = IVAL(inbuf, smb_nts_TotalDataCount); -- num_params_sofar += (parameter_count = IVAL(inbuf,smb_nts_ParameterCount)); -- num_data_sofar += ( data_count = IVAL(inbuf, smb_nts_DataCount)); -- if (num_params_sofar > total_parameter_count || num_data_sofar > total_data_count) -- exit_server("reply_nttrans2: data overflow in secondary nttrans packet\n"); -- -- memcpy( ¶ms[ IVAL(inbuf, smb_nts_ParameterDisplacement)], -- smb_base(inbuf) + IVAL(inbuf, smb_nts_ParameterOffset), parameter_count); -- memcpy( &data[IVAL(inbuf, smb_nts_DataDisplacement)], -- smb_base(inbuf)+ IVAL(inbuf, smb_nts_DataOffset), data_count); -+ if (IVAL(inbuf, smb_nts_TotalParameterCount) < total_parameter_count) -+ total_parameter_count = IVAL(inbuf, smb_nts_TotalParameterCount); -+ if (IVAL(inbuf, smb_nts_TotalDataCount) < total_data_count) -+ total_data_count = IVAL(inbuf, smb_nts_TotalDataCount); -+ -+ parameter_count = IVAL(inbuf,smb_nts_ParameterCount); -+ parameter_offset = IVAL(inbuf, smb_nts_ParameterOffset); -+ parameter_displacement = IVAL(inbuf, smb_nts_ParameterDisplacement); -+ num_params_sofar += parameter_count; -+ -+ data_count = IVAL(inbuf, smb_nts_DataCount); -+ data_displacement = IVAL(inbuf, smb_nts_DataDisplacement); -+ data_offset = IVAL(inbuf, smb_nts_DataOffset); -+ num_data_sofar += data_count; -+ -+ if (num_params_sofar > total_parameter_count || num_data_sofar > total_data_count) { -+ DEBUG(0,("reply_nttrans2: data overflow in secondary nttrans packet")); -+ goto bad_param; -+ } -+ -+ if (parameter_count) { -+ if (parameter_displacement + parameter_count >= total_parameter_count) -+ goto bad_param; -+ if ((parameter_displacement + parameter_count < parameter_displacement) || -+ (parameter_displacement + parameter_count < parameter_count)) -+ goto bad_param; -+ if (smb_base(inbuf) + parameter_offset + parameter_count >= inbuf + bufsize) -+ goto bad_param; -+ if (params + parameter_displacement < params) -+ goto bad_param; -+ -+ memcpy( ¶ms[parameter_displacement], smb_base(inbuf) + parameter_offset, parameter_count); -+ } -+ -+ if (data_count) { -+ if (data_displacement + data_count >= total_data_count) -+ goto bad_param; -+ if ((data_displacement + data_count < data_displacement) || -+ (data_displacement + data_count < data_count)) -+ goto bad_param; -+ if (smb_base(inbuf) + data_offset + data_count >= inbuf + bufsize) -+ goto bad_param; -+ if (data + data_displacement < data) -+ goto bad_param; -+ -+ memcpy( &data[data_displacement], smb_base(inbuf)+ data_offset, data_count); -+ } - } - } - -@@ -2714,4 +2765,10 @@ - return outsize; /* If a correct response was needed the call_nt_transact_xxxx - calls have already sent it. If outsize != -1 then it is - returning an error packet. */ -+ bad_param: -+ -+ SAFE_FREE(params); -+ SAFE_FREE(data); -+ SAFE_FREE(setup); -+ return ERROR(ERRDOS,ERRinvalidparam); - } -diff -ruN samba-2.0.10.orig/source/smbd/password.c samba-2.0.10/source/smbd/password.c ---- samba-2.0.10.orig/source/smbd/password.c 2006-03-06 22:25:08.000000000 +0100 -+++ samba-2.0.10/source/smbd/password.c 2006-03-06 22:25:53.000000000 +0100 -@@ -770,7 +770,7 @@ - if (!ok && lp_username(snum)) { - char *auser; - pstring user_list; -- StrnCpy(user_list,lp_username(snum),sizeof(pstring)); -+ StrnCpy(user_list,lp_username(snum),sizeof(pstring)-1); - - pstring_sub(user_list,"%S",lp_servicename(snum)); - -diff -ruN samba-2.0.10.orig/source/smbd/reply.c samba-2.0.10/source/smbd/reply.c ---- samba-2.0.10.orig/source/smbd/reply.c 2006-03-06 22:25:08.000000000 +0100 -+++ samba-2.0.10/source/smbd/reply.c 2006-03-06 22:25:53.000000000 +0100 -@@ -1413,6 +1413,9 @@ - - for (i=numentries;(i<maxentries) && !finished;i++) - { -+ /* check to make sure we have room in the buffer */ -+ if ( ((PTR_DIFF(p, outbuf))+DIR_STRUCT_SIZE) > BUFFER_SIZE ) -+ break; - finished = - !get_dir_entry(conn,mask,dirtype,fname,&size,&mode,&date,check_descend); - if (!finished) -@@ -3122,6 +3125,9 @@ - - - for (i=first;i<first+num_to_get;i++) { -+ /* check to make sure we have room in the buffer */ -+ if ( (PTR_DIFF(p, outbuf)+28) > BUFFER_SIZE ) -+ break; - put_dos_date2(p,0,queue[i].time); - CVAL(p,4) = (queue[i].status==LPQ_PRINTING?2:3); - SSVAL(p,5,printjob_encode(SNUM(conn), -diff -ruN samba-2.0.10.orig/source/smbd/trans2.c samba-2.0.10/source/smbd/trans2.c ---- samba-2.0.10.orig/source/smbd/trans2.c 2000-04-24 19:27:31.000000000 +0200 -+++ samba-2.0.10/source/smbd/trans2.c 2006-03-06 22:25:53.000000000 +0100 -@@ -201,7 +201,6 @@ - int16 open_ofun = SVAL(params,12); - int32 open_size = IVAL(params,14); - char *pname = ¶ms[28]; -- int16 namelen = strlen(pname)+1; - - pstring fname; - mode_t unixmode; -@@ -213,7 +212,7 @@ - BOOL bad_path = False; - files_struct *fsp; - -- StrnCpy(fname,pname,namelen); -+ pstrcpy(fname,pname); - - DEBUG(3,("trans2open %s mode=%d attr=%d ofun=%d size=%d\n", - fname,open_mode, open_attr, open_ofun, open_size)); -@@ -2185,7 +2184,7 @@ - unsigned int suwcnt = SVAL(inbuf, smb_suwcnt); - unsigned int tran_call = SVAL(inbuf, smb_setup0); - char *params = NULL, *data = NULL; -- int num_params, num_params_sofar, num_data, num_data_sofar; -+ unsigned int num_params, num_params_sofar, num_data, num_data_sofar; - - if(global_oplock_break && (tran_call == TRANSACT2_OPEN)) { - /* Queue this open message as we are the process of an -@@ -2203,8 +2202,9 @@ - /* All trans2 messages we handle have smb_sucnt == 1 - ensure this - is so as a sanity check */ - if (suwcnt != 1) { -- DEBUG(2,("Invalid smb_sucnt in trans2 call\n")); -- return(ERROR(ERRSRV,ERRerror)); -+ DEBUG(2,("Invalid smb_sucnt in trans2 call(%u)\n",suwcnt)); -+ DEBUG(2,("Transaction is %d\n",tran_call)); -+ ERROR(ERRDOS,ERRinvalidparam); - } - - /* Allocate the space for the maximum needed parameters and data */ -@@ -2215,11 +2215,9 @@ - - if ((total_params && !params) || (total_data && !data)) { - DEBUG(2,("Out of memory in reply_trans2\n")); -- if(params) -- free(params); -- if(data) -- free(data); -- return(ERROR(ERRDOS,ERRnomem)); -+ SAFE_FREE(params); -+ SAFE_FREE(data); -+ return ERROR(ERRDOS,ERRnomem); - } - - /* Copy the param and data bytes sent with this request into -@@ -2230,20 +2228,37 @@ - if (num_params > total_params || num_data > total_data) - exit_server("invalid params in reply_trans2"); - -- if(params) -- memcpy( params, smb_base(inbuf) + SVAL(inbuf, smb_psoff), num_params); -- if(data) -- memcpy( data, smb_base(inbuf) + SVAL(inbuf, smb_dsoff), num_data); -+ if(params) { -+ unsigned int psoff = SVAL(inbuf, smb_psoff); -+ if ((psoff + num_params < psoff) || (psoff + num_params < num_params)) -+ goto bad_param; -+ if (smb_base(inbuf) + psoff + num_params > inbuf + length) -+ goto bad_param; -+ memcpy( params, smb_base(inbuf) + psoff, num_params); -+ } -+ if(data) { -+ unsigned int dsoff = SVAL(inbuf, smb_dsoff); -+ if ((dsoff + num_data < dsoff) || (dsoff + num_data < num_data)) -+ goto bad_param; -+ if (smb_base(inbuf) + dsoff + num_data > inbuf + length) -+ goto bad_param; -+ memcpy( data, smb_base(inbuf) + dsoff, num_data); -+ } - - if(num_data_sofar < total_data || num_params_sofar < total_params) { - /* We need to send an interim response then receive the rest - of the parameter/data bytes */ - outsize = set_message(outbuf,0,0,True); -- send_smb(Client,outbuf); -+ if (!send_smb(Client,outbuf)) -+ exit_server("reply_trans2: send_smb failed."); - - while (num_data_sofar < total_data || - num_params_sofar < total_params) { - BOOL ret; -+ unsigned int param_disp; -+ unsigned int param_off; -+ unsigned int data_disp; -+ unsigned int data_off; - - ret = receive_next_smb(inbuf,bufsize,SMB_SECONDARY_WAIT); - -@@ -2255,26 +2270,55 @@ - else - DEBUG(0,("reply_trans2: %s in getting secondary trans2 response.\n", - (smb_read_error == READ_ERROR) ? "error" : "timeout" )); -- if(params) -- free(params); -- if(data) -- free(data); -- return(ERROR(ERRSRV,ERRerror)); -+ goto bad_param; - } - - /* Revise total_params and total_data in case - they have changed downwards */ -- total_params = SVAL(inbuf, smb_tpscnt); -- total_data = SVAL(inbuf, smb_tdscnt); -- num_params_sofar += (num_params = SVAL(inbuf,smb_spscnt)); -- num_data_sofar += ( num_data = SVAL(inbuf, smb_sdscnt)); -+ if (SVAL(inbuf, smb_tpscnt) < total_params) -+ total_params = SVAL(inbuf, smb_tpscnt); -+ if (SVAL(inbuf, smb_tdscnt) < total_data) -+ total_data = SVAL(inbuf, smb_tdscnt); -+ -+ num_params = SVAL(inbuf,smb_spscnt); -+ param_off = SVAL(inbuf, smb_spsoff); -+ param_disp = SVAL(inbuf, smb_spsdisp); -+ num_params_sofar += num_params; -+ -+ num_data = SVAL(inbuf, smb_sdscnt); -+ data_off = SVAL(inbuf, smb_sdsoff); -+ data_disp = SVAL(inbuf, smb_sdsdisp); -+ num_data_sofar += num_data; -+ - if (num_params_sofar > total_params || num_data_sofar > total_data) -- exit_server("data overflow in trans2"); -+ goto bad_param; - -- memcpy( ¶ms[ SVAL(inbuf, smb_spsdisp)], -- smb_base(inbuf) + SVAL(inbuf, smb_spsoff), num_params); -- memcpy( &data[SVAL(inbuf, smb_sdsdisp)], -- smb_base(inbuf)+ SVAL(inbuf, smb_sdsoff), num_data); -+ if (num_params) { -+ if (param_disp + num_params >= total_params) -+ goto bad_param; -+ if ((param_disp + num_params < param_disp) || -+ (param_disp + num_params < num_params)) -+ goto bad_param; -+ if (smb_base(inbuf) + param_off + num_params >= inbuf + bufsize) -+ goto bad_param; -+ if (params + param_disp < params) -+ goto bad_param; -+ -+ memcpy( ¶ms[param_disp], smb_base(inbuf) + param_off, num_params); -+ } -+ if (num_data) { -+ if (data_disp + num_data >= total_data) -+ goto bad_param; -+ if ((data_disp + num_data < data_disp) || -+ (data_disp + num_data < num_data)) -+ goto bad_param; -+ if (smb_base(inbuf) + data_off + num_data >= inbuf + bufsize) -+ goto bad_param; -+ if (data + data_disp < data) -+ goto bad_param; -+ -+ memcpy( &data[data_disp], smb_base(inbuf) + data_off, num_data); -+ } - } - } - -@@ -2367,4 +2411,10 @@ - return outsize; /* If a correct response was needed the - call_trans2xxx calls have already sent - it. If outsize != -1 then it is returning */ -+ -+ bad_param: -+ -+ SAFE_FREE(params); -+ SAFE_FREE(data); -+ return (ERROR(ERRDOS,ERRinvalidparam)); - } |