dnrops
/
gimp
mirror of https://github.com/GNOME/gimp.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Validate XCF string length 

This patch limits the string length to 16 MB. If problems occur in the
future because 16 MB is small, increase the limit by modifying
MAX_XCF_STRING_LEN.
This commit is contained in:
Mukund Sivaraman 2010-10-16 04:04:26 +05:30
parent 675a9c3950
commit 4855d433b0
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
app/xcf/xcf-read.c
View File

@ -27,6 +27,7 @@
#include "gimp-intl.h"
#define MAX_XCF_STRING_LEN (16 * (1L << 20)) /* 16 MB */
guint
xcf_read_int32 (FILE *fp,
@ -94,7 +95,13 @@ xcf_read_string (FILE *fp,
total += xcf_read_int32 (fp, &tmp, 1);
if (tmp > 0)
if (tmp > MAX_XCF_STRING_LEN)
{
g_warning ("Maximum string length (%ld bytes) exceeded."
" Possibly corrupt XCF file.", MAX_XCF_STRING_LEN);
data[i] = NULL;
}
else if (tmp > 0)
{
gchar *str;