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miniupnpc: quick fix for buffer overflow 

http://talosintel.com/reports/TALOS-2015-0035/

reported by palexander on IRC
This commit is contained in:
moneromooo-monero 2015-10-09 15:17:21 +01:00
parent 82d7e79ea0
commit be2764aa9e
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1 changed files with 4 additions and 0 deletions
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4
external/miniupnpc/igd_desc_parse.c vendored
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@ -15,6 +15,10 @@
void IGDstartelt(void * d, const char * name, int l) void IGDstartelt(void * d, const char * name, int l)
{ {
struct IGDdatas * datas = (struct IGDdatas *)d; struct IGDdatas * datas = (struct IGDdatas *)d;
if (l >= MINIUPNPC_URL_MAXSIZE) {
printf("Attempt to exploit miniupnpc buffer overflow\n");
l = MINIUPNPC_URL_MAXSIZE - 1;
}
memcpy( datas->cureltname, name, l); memcpy( datas->cureltname, name, l);
datas->cureltname[l] = '\0'; datas->cureltname[l] = '\0';
datas->level++; datas->level++;