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Fix: buffer overflow in radsend (log radius or combination of auth radius with fakeresolve must be enabled, RADIUS feature is experimental)
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This commit is contained in:
Vladimir Dubrovin 2026-07-28 11:31:06 +03:00
parent 5f542a505a
commit e4a5a7252c
2 changed files with 7 additions and 0 deletions
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2
src/authradius.c
View file

@ -391,6 +391,7 @@ int radsend(struct clientparam * param, int auth, int stop){
if(conf.stringtable){
*ptr++ = PW_NAS_IDENTIFIER;
len = strlen((char *)conf.stringtable[SERVICES+param->service]);
if(len > 253) len = 253;
*ptr++ = (2 + len);
memcpy(ptr, conf.stringtable[SERVICES+param->service], len);
ptr += len;
@ -416,6 +417,7 @@ int radsend(struct clientparam * param, int auth, int stop){
if(param->hostname){
*ptr++ = PW_CALLED_STATION_ID;
len = strlen((char *)param->hostname);
if(len > 253) len = 253;
*ptr++ = (2 + len);
memcpy(ptr, param->hostname, len);
ptr += len;

5
src/common.c
View file

@ -507,6 +507,11 @@ int parsehostname(char *hostname, struct clientparam *param, uint16_t port){
*SAPORT(&param->req) = htons(port);
return 0;
}
if(strlen(hostname + (se!=0)) > 253){
if(se) *se = ']';
if(sp) *sp = ':';
return 1;
}
if(hostname != (char *)param->hostname){
if(param->hostname) free(param->hostname);
param->hostname = (unsigned char *)strdup(hostname + (se!=0));