8000 int _baseCellToCCWrot60: Possible Buffer Overflow · Issue #978 · uber/h3 · GitHub
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int _baseCellToCCWrot60: Possible Buffer Overflow #978

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stasos24 opened this issue Mar 5, 2025 · 0 comments
Open

int _baseCellToCCWrot60: Possible Buffer Overflow #978

stasos24 opened this issue Mar 5, 2025 · 0 comments

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@stasos24
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stasos24 commented Mar 5, 2025 •
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Since array :

h3/src/h3lib/lib/baseCells.c

Line 308 in f530729

static const BaseCellRotation faceIjkBaseCells[NUM_ICOSA_FACES][3][3][3] = {

has size:

h3/src/h3lib/include/constants.h

Line 79 in f530729

#define NUM_ICOSA_FACES 20

it could be overflow at:

h3/src/h3lib/lib/baseCells.c

Lines 877 to 883 in f530729

int _baseCellToCCWrot60(int baseCell, int face) {
if (face < 0 || face > NUM_ICOSA_FACES) return INVALID_ROTATIONS;
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
for (int k = 0; k < 3; k++) {
if (faceIjkBaseCells[face][i][j][k].baseCell == baseCell) {
return faceIjkBaseCells[face][i][j][k].ccwRot60;

when face = 20
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