On Fri, Sep 14, 2012 at 05:23:42PM +0200, Moritz Muehlenhoff wrote:
> Hi Ari,
>
> On Mon, Aug 20, 2012 at 03:16:50PM +0200, Moritz Muehlenhoff wrote:
> > On Mon, Aug 20, 2012 at 03:04:13PM +0200, Moritz Muehlenhoff wrote:
> > > Package: gimp
> > > Severity: grave
> > > Tags: security
> > > Justification: user security hole
> > >
> > > Please see https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-3403 for
> > > details
> > > and patches.
> >
> > And another issue:
> > https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-3481
>
> While this is fixed sid, it's still open in Wheezy, since testing is frozen.
>
> You need to either ask for an unblock (likely not welcome at this point of
> the freeze) or prepare an upload for testing-proposed-updates with the
> security fixes only.
The interdiff between 2.8.0 and 2.8.2 is too big and introduces an ABI change.
Proposed patch for tpu attached.
Cheers,
Moritz
diff -Naur gimp-2.8.0.orig/debian/changelog gimp-2.8.0/debian/changelog
--- gimp-2.8.0.orig/debian/changelog 2012-05-13 10:28:49.000000000 +0200
+++ gimp-2.8.0/debian/changelog 2012-09-19 17:27:25.782920744 +0200
@@ -1,3 +1,10 @@
+gimp (2.8.0-2+deb7u1) testing-proposed-updates; urgency=medium
+
+ * Non-maintainer upload.
+ * Fix CVE-2012-3403 and CVE-2012-3481 (Closes: #685397)
+
+ -- Moritz Mühlenhoff <j...@debian.org> Wed, 19 Sep 2012 17:25:47 +0200
+
gimp (2.8.0-2) unstable; urgency=low
[ Jordi Mallach ]
diff -Naur gimp-2.8.0.orig/debian/patches/02_CVE-2012-3403.patch gimp-2.8.0/debian/patches/02_CVE-2012-3403.patch
--- gimp-2.8.0.orig/debian/patches/02_CVE-2012-3403.patch 1970-01-01 01:00:00.000000000 +0100
+++ gimp-2.8.0/debian/patches/02_CVE-2012-3403.patch 2012-09-19 17:24:54.014913400 +0200
@@ -0,0 +1,459 @@
+diff -Naur gimp-2.8.0.orig/plug-ins/common/file-cel.c gimp-2.8.0/plug-ins/common/file-cel.c
+--- gimp-2.8.0.orig/plug-ins/common/file-cel.c 2012-03-12 20:18:10.000000000 +0100
++++ gimp-2.8.0/plug-ins/common/file-cel.c 2012-09-19 17:15:19.878886191 +0200
+@@ -44,8 +44,10 @@
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+
+-static gint load_palette (FILE *fp,
+- guchar palette[]);
++static gint load_palette (const gchar *file,
++ FILE *fp,
++ guchar palette[],
++ GError **error);
+ static gint32 load_image (const gchar *file,
+ const gchar *brief,
+ GError **error);
+@@ -55,7 +57,8 @@
+ gint32 layer,
+ GError **error);
+ static void palette_dialog (const gchar *title);
+-static gboolean need_palette (const gchar *file);
++static gboolean need_palette (const gchar *file,
++ GError **error);
+
+
+ /* Globals... */
+@@ -150,6 +153,7 @@
+ gint32 image;
+ GimpExportReturn export = GIMP_EXPORT_CANCEL;
+ GError *error = NULL;
++ gint needs_palette = 0;
+
+ run_mode = param[0].data.d_int32;
+
+@@ -187,20 +191,32 @@
+ else if (run_mode == GIMP_RUN_INTERACTIVE)
+ {
+ /* Let user choose KCF palette (cancel ignores) */
+- if (need_palette (param[1].data.d_string))
+- palette_dialog (_("Load KISS Palette"));
++ needs_palette = need_palette (param[1].data.d_string, &error);
+
+- gimp_set_data (SAVE_PROC, palette_file, data_length);
+- }
++ if (! error)
++ {
++ if (needs_palette)
++ palette_dialog (_("Load KISS Palette"));
+
+- image = load_image (param[1].data.d_string, param[2].data.d_string,
+- &error);
++ gimp_set_data (SAVE_PROC, palette_file, data_length);
++ }
++ }
+
+- if (image != -1)
++ if (! error)
+ {
+- *nreturn_vals = 2;
+- values[1].type = GIMP_PDB_IMAGE;
+- values[1].data.d_image = image;
++ image = load_image (param[1].data.d_string, param[2].data.d_string,
++ &error);
++
++ if (image != -1)
++ {
++ *nreturn_vals = 2;
++ values[1].type = GIMP_PDB_IMAGE;
++ values[1].data.d_image = image;
++ }
++ else
++ {
++ status = GIMP_PDB_EXECUTION_ERROR;
++ }
+ }
+ else
+ {
+@@ -263,18 +279,33 @@
+
+ /* Peek into the file to determine whether we need a palette */
+ static gboolean
+-need_palette (const gchar *file)
++need_palette (const gchar *file,
++ GError **error)
+ {
+ FILE *fp;
+ guchar header[32];
++ size_t n_read;
+
+ fp = g_fopen (file, "rb");
+- if (!fp)
+- return FALSE;
++ if (fp == NULL)
++ {
++ g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
++ _("Could not open '%s' for reading: %s"),
++ gimp_filename_to_utf8 (file), g_strerror (errno));
++ return FALSE;
++ }
++
++ n_read = fread (header, 32, 1, fp);
+
+- fread (header, 32, 1, fp);
+ fclose (fp);
+
++ if (n_read < 1)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("EOF or error while reading image header"));
++ return FALSE;
++ }
++
+ return (header[5] < 32);
+ }
+
+@@ -286,11 +317,12 @@
+ GError **error)
+ {
+ FILE *fp; /* Read file pointer */
+- guchar header[32]; /* File header */
++ guchar header[32], /* File header */
++ file_mark, /* KiSS file type */
++ bpp; /* Bits per pixel */
+ gint height, width, /* Dimensions of image */
+ offx, offy, /* Layer offets */
+- colours, /* Number of colours */
+- bpp; /* Bits per pixel */
++ colours; /* Number of colours */
+
+ gint32 image, /* Image */
+ layer; /* Layer */
+@@ -301,6 +333,7 @@
+ GimpPixelRgn pixel_rgn; /* Pixel region for layer */
+
+ gint i, j, k; /* Counters */
++ size_t n_read; /* Number of items read from file */
+
+
+ /* Open the file for reading */
+@@ -319,7 +352,14 @@
+
+ /* Get the image dimensions and create the image... */
+
+- fread (header, 4, 1, fp);
++ n_read = fread (header, 4, 1, fp);
++
++ if (n_read < 1)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("EOF or error while reading image header"));
++ return -1;
++ }
+
+ if (strncmp ((const gchar *) header, "KiSS", 4))
+ {
+@@ -332,18 +372,53 @@
+ }
+ else
+ { /* New-style image file, read full header */
+- fread (header, 28, 1, fp);
++ n_read = fread (header, 28, 1, fp);
++
++ if (n_read < 1)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("EOF or error while reading image header"));
++ return -1;
++ }
++
++ file_mark = header[0];
++ if (file_mark != 0x20 && file_mark != 0x21)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("is not a CEL image file"));
++ return -1;
++ }
++
+ bpp = header[1];
+- if (bpp == 24)
+- colours = -1;
+- else
+- colours = (1 << header[1]);
++ switch (bpp)
++ {
++ case 4:
++ case 8:
++ case 32:
++ colours = (1 << bpp);
++ break;
++ default:
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("illegal bpp value in image: %hhu"), bpp);
++ return -1;
++ }
++
+ width = header[4] + (256 * header[5]);
+ height = header[6] + (256 * header[7]);
+ offx = header[8] + (256 * header[9]);
+ offy = header[10] + (256 * header[11]);
+ }
+
++ if ((width == 0) || (height == 0) || (width + offx > GIMP_MAX_IMAGE_SIZE) ||
++ (height + offy > GIMP_MAX_IMAGE_SIZE))
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("illegal image dimensions: width: %d, horizontal offset: "
++ "%d, height: %d, vertical offset: %d"),
++ width, offx, height, offy);
++ return -1;
++ }
++
+ if (bpp == 32)
+ image = gimp_image_new (width + offx, height + offy, GIMP_RGB);
+ else
+@@ -351,7 +426,7 @@
+
+ if (image == -1)
+ {
+- g_message (_("Can't create a new image"));
++ g_set_error (error, 0, 0, _("Can't create a new image"));
+ fclose (fp);
+ return -1;
+ }
+@@ -384,7 +459,15 @@
+ switch (bpp)
+ {
+ case 4:
+- fread (buffer, (width+1)/2, 1, fp);
++ n_read = fread (buffer, (width+1)/2, 1, fp);
++
++ if (n_read < 1)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("EOF or error while reading image data"));
++ return -1;
++ }
++
+ for (j = 0, k = 0; j < width*2; j+= 4, ++k)
+ {
+ if (buffer[k] / 16 == 0)
+@@ -411,7 +494,15 @@
+ break;
+
+ case 8:
+- fread (buffer, width, 1, fp);
++ n_read = fread (buffer, width, 1, fp);
++
++ if (n_read < 1)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("EOF or error while reading image data"));
++ return -1;
++ }
++
+ for (j = 0, k = 0; j < width*2; j+= 2, ++k)
+ {
+ if (buffer[k] == 0)
+@@ -428,7 +519,15 @@
+ break;
+
+ case 32:
+- fread (line, width*4, 1, fp);
++ n_read = fread (line, width*4, 1, fp);
++
++ if (n_read < 1)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("EOF or error while reading image data"));
++ return -1;
++ }
++
+ /* The CEL file order is BGR so we need to swap B and R
+ * to get the Gimp RGB order.
+ */
+@@ -441,7 +540,8 @@
+ break;
+
+ default:
+- g_message (_("Unsupported bit depth (%d)!"), bpp);
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("Unsupported bit depth (%d)!"), bpp);
+ return -1;
+ }
+
+@@ -459,7 +559,7 @@
+ if (bpp != 32)
+ {
+ /* Use palette from file or otherwise default grey palette */
+- palette = g_new (guchar, colours*3);
++ guchar palette[256*3];
+
+ /* Open the file for reading if user picked one */
+ if (palette_file == NULL)
+@@ -469,12 +569,23 @@
+ else
+ {
+ fp = g_fopen (palette_file, "r");
++
++ if (fp == NULL)
++ {
++ g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
++ _("Could not open '%s' for reading: %s"),
++ gimp_filename_to_utf8 (palette_file),
++ g_strerror (errno));
++ return -1;
++ }
+ }
+
+ if (fp != NULL)
+ {
+- colours = load_palette (fp, palette);
++ colours = load_palette (palette_file, fp, palette, error);
+ fclose (fp);
++ if (colours < 0 || *error)
++ return -1;
+ }
+ else
+ {
+@@ -485,10 +596,6 @@
+ }
+
+ gimp_image_set_colormap (image, palette + 3, colours - 1);
+-
+- /* Close palette file, give back allocated memory */
+-
+- g_free (palette);
+ }
+
+ /* Now get everything redrawn and hand back the finished image */
+@@ -500,32 +607,100 @@
+ }
+
+ static gint
+-load_palette (FILE *fp,
+- guchar palette[])
++load_palette (const gchar *file,
++ FILE *fp,
++ guchar palette[],
++ GError **error)
+ {
+ guchar header[32]; /* File header */
+ guchar buffer[2];
+- int i, bpp, colours= 0;
++ guchar file_mark, bpp;
++ gint i, colours = 0;
++ size_t n_read;
++
++ n_read = fread (header, 4, 1, fp);
++
++ if (n_read < 1)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("'%s': EOF or error while reading palette header"),
++ gimp_filename_to_utf8 (file));
++ return -1;
++ }
+
+- fread (header, 4, 1, fp);
+ if (!strncmp ((const gchar *) header, "KiSS", 4))
+ {
+- fread (header+4, 28, 1, fp);
++ n_read = fread (header+4, 28, 1, fp);
++
++ if (n_read < 1)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("'%s': EOF or error while reading palette header"),
++ gimp_filename_to_utf8 (file));
++ return -1;
++ }
++
++ file_mark = header[4];
++ if (file_mark != 0x10)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("'%s': is not a KCF palette file"),
++ gimp_filename_to_utf8 (file));
++ return -1;
++ }
++
+ bpp = header[5];
++ if (bpp != 12 && bpp != 24)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("'%s': illegal bpp value in palette: %hhu"),
++ gimp_filename_to_utf8 (file), bpp);
++ return -1;
++ }
++
+ colours = header[8] + header[9] * 256;
+- if (bpp == 12)
++ if (colours != 16 && colours != 256)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("'%s': illegal number of colors: %u"),
++ gimp_filename_to_utf8 (file), colours);
++ return -1;
++ }
++
++ switch (bpp)
+ {
++ case 12:
+ for (i = 0; i < colours; ++i)
+ {
+- fread (buffer, 1, 2, fp);
++ n_read = fread (buffer, 1, 2, fp);
++
++ if (n_read < 2)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("'%s': EOF or error while reading "
++ "palette data"),
++ gimp_filename_to_utf8 (file));
++ return -1;
++ }
++
+ palette[i*3]= buffer[0] & 0xf0;
+ palette[i*3+1]= (buffer[1] & 0x0f) * 16;
+ palette[i*3+2]= (buffer[0] & 0x0f) * 16;
+ }
+- }
+- else
+- {
+- fread (palette, colours, 3, fp);
++ break;
++ case 24:
++ n_read = fread (palette, colours, 3, fp);
++
++ if (n_read < 3)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("'%s': EOF or error while reading palette data"),
++ gimp_filename_to_utf8 (file));
++ return -1;
++ }
++ break;
++ default:
++ g_assert_not_reached ();
+ }
+ }
+ else
+@@ -534,7 +709,16 @@
+ fseek (fp, 0, SEEK_SET);
+ for (i= 0; i < colours; ++i)
+ {
+- fread (buffer, 1, 2, fp);
++ n_read = fread (buffer, 1, 2, fp);
++
++ if (n_read < 2)
++ {
++ g_set_error (error, G_FILE_ERROR, G_FILE_ERROR_FAILED,
++ _("'%s': EOF or error while reading palette data"),
++ gimp_filename_to_utf8 (file));
++ return -1;
++ }
++
+ palette[i*3] = buffer[0] & 0xf0;
+ palette[i*3+1] = (buffer[1] & 0x0f) * 16;
+ palette[i*3+2] = (buffer[0] & 0x0f) * 16;
diff -Naur gimp-2.8.0.orig/debian/patches/03_CVE-2012-3481.patch gimp-2.8.0/debian/patches/03_CVE-2012-3481.patch
--- gimp-2.8.0.orig/debian/patches/03_CVE-2012-3481.patch 1970-01-01 01:00:00.000000000 +0100
+++ gimp-2.8.0/debian/patches/03_CVE-2012-3481.patch 2012-09-19 17:24:54.014913400 +0200
@@ -0,0 +1,23 @@
+diff -Naur gimp-2.8.0.orig/plug-ins/common/file-gif-load.c gimp-2.8.0/plug-ins/common/file-gif-load.c
+--- gimp-2.8.0.orig/plug-ins/common/file-gif-load.c 2012-03-12 20:18:10.000000000 +0100
++++ gimp-2.8.0/plug-ins/common/file-gif-load.c 2012-09-19 17:18:07.770893849 +0200
+@@ -1057,10 +1057,17 @@
+ cur_progress = 0;
+ max_progress = height;
+
++ if (len > (G_MAXSIZE / height / (alpha_frame ? (promote_to_rgb ? 4 : 2) : 1)))
++ {
++ g_message ("'%s' has a larger image size than GIMP can handle.",
++ gimp_filename_to_utf8 (filename));
++ return -1;
++ }
++
+ if (alpha_frame)
+- dest = (guchar *) g_malloc (len * height * (promote_to_rgb ? 4 : 2));
++ dest = (guchar *) g_malloc ((gsize)len * (gsize)height * (promote_to_rgb ? 4 : 2));
+ else
+- dest = (guchar *) g_malloc (len * height);
++ dest = (guchar *) g_malloc ((gsize)len * (gsize)height);
+
+ #ifdef GIFDEBUG
+ g_print ("GIF: reading %d by %d%s GIF image, ncols=%d\n",
diff -Naur gimp-2.8.0.orig/debian/patches/series gimp-2.8.0/debian/patches/series
--- gimp-2.8.0.orig/debian/patches/series 2012-05-13 10:21:51.000000000 +0200
+++ gimp-2.8.0/debian/patches/series 2012-09-19 17:25:23.554914718 +0200
@@ -1 +1,3 @@
01_hurd_ftbfs.patch
+02_CVE-2012-3403.patch
+03_CVE-2012-3481.patch
