Skip to content

Y
ygopro
Commit 3587d3bc authored by nanahira's avatar nanahira
Browse files
Options

fix CVE-2020-24213

parent 5893ab80
Hide whitespace changes
Inline Side-by-side
Showing with 4 additions and 2 deletions
gframe/single_duel.cpp
View file @ 3587d3bc
......@@ -288,7 +288,8 @@ void SingleDuel::UpdateDeck(DuelPlayer* dp, void* pdata, unsigned int len) {
int mainc = BufferIO::ReadInt32(deckbuf);
int sidec = BufferIO::ReadInt32(deckbuf);
// verify data
if((unsigned)mainc + (unsigned)sidec > (len - 8) / 4) {
const unsigned int possibleMaxLength = (len - 8) / 4;
if((unsigned)mainc > possibleMaxLength || (unsigned)sidec > possibleMaxLength || (unsigned)mainc + (unsigned)sidec > possibleMaxLength) {
STOC_ErrorMsg scem;
scem.msg = ERRMSG_DECKERROR;
scem.code = 0;
......
gframe/tag_duel.cpp
View file @ 3587d3bc
......@@ -263,7 +263,8 @@ void TagDuel::UpdateDeck(DuelPlayer* dp, void* pdata, unsigned int len) {
int mainc = BufferIO::ReadInt32(deckbuf);
int sidec = BufferIO::ReadInt32(deckbuf);
// verify data
if((unsigned)mainc + (unsigned)sidec > (len - 8) / 4) {
const unsigned int possibleMaxLength = (len - 8) / 4;
if((unsigned)mainc > possibleMaxLength || (unsigned)sidec > possibleMaxLength || (unsigned)mainc + (unsigned)sidec > possibleMaxLength) {
STOC_ErrorMsg scem;
scem.msg = ERRMSG_DECKERROR;
scem.code = 0;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment