| Description: Fix integer overflow in graphics mode (CVE-2013-6050) |
| Author: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> |
| Bug-CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6050 |
| |
| Index: links-2.7/html_tbl.c |
| =================================================================== |
| --- links-2.7.orig/html_tbl.c 2013-11-22 01:57:29.000000000 +0100 |
| +++ links-2.7/html_tbl.c 2013-11-22 01:58:30.000000000 +0100 |
| @@ -1550,6 +1550,8 @@ static void add_to_rect_sets(struct rect |
| static void add_to_cell_sets(struct table_cell ****s, int **nn, int *n, struct rect *r, struct table_cell *c) |
| { |
| int i, j; |
| + if (r->y1 < 0 || r->y2 < 0) |
| + fatal_exit("add_to_cell_sets: integer overflow: %d, %d", r->y1, r->y2); |
| for (i = r->y1 >> RECT_BOUND_BITS; i <= (r->y2 - 1) >> RECT_BOUND_BITS; i++) { |
| if (i >= *n) { |
| struct table_cell ***ns; |