slackware-current/source/l/libwmf/libwmf-0.2.8.4-CVE-2015-0848+CVE-2015-4588.patch
Patrick J Volkerding 646a5c1cbf Mon May 28 19:12:29 UTC 2018
a/pkgtools-15.0-noarch-13.txz:  Rebuilt.
  installpkg: default line length for --terselength is the number of columns.
  removepkg: added --terse mode.
  upgradepkg: default line length for --terselength is the number of columns.
  upgradepkg: accept -option in addition to --option.
ap/vim-8.1.0026-x86_64-1.txz:  Upgraded.
d/bison-3.0.5-x86_64-1.txz:  Upgraded.
e/emacs-26.1-x86_64-1.txz:  Upgraded.
kde/kopete-4.14.3-x86_64-8.txz:  Rebuilt.
  Recompiled against libidn-1.35.
n/conntrack-tools-1.4.5-x86_64-1.txz:  Upgraded.
n/libnetfilter_conntrack-1.0.7-x86_64-1.txz:  Upgraded.
n/libnftnl-1.1.0-x86_64-1.txz:  Upgraded.
n/links-2.16-x86_64-2.txz:  Rebuilt.
  Rebuilt to enable X driver for -g mode.
n/lynx-2.8.9dev.19-x86_64-1.txz:  Upgraded.
n/nftables-0.8.5-x86_64-1.txz:  Upgraded.
n/p11-kit-0.23.11-x86_64-1.txz:  Upgraded.
n/ulogd-2.0.7-x86_64-1.txz:  Upgraded.
n/whois-5.3.1-x86_64-1.txz:  Upgraded.
xap/network-manager-applet-1.8.12-x86_64-1.txz:  Upgraded.
xap/vim-gvim-8.1.0026-x86_64-1.txz:  Upgraded.
2018-05-31 23:39:35 +02:00

118 lines
3.2 KiB
Diff

--- libwmf-0.2.8.4/src/ipa/ipa/bmp.h 2015-06-08 14:46:24.591876404 +0100
+++ libwmf-0.2.8.4/src/ipa/ipa/bmp.h 2015-06-08 14:46:35.345993247 +0100
@@ -859,7 +859,7 @@
%
%
*/
-static void DecodeImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src,unsigned int compression,unsigned char* pixels)
+static int DecodeImage (wmfAPI* API,wmfBMP* bmp,BMPSource* src,unsigned int compression,unsigned char* pixels)
{ int byte;
int count;
int i;
@@ -870,12 +870,14 @@
U32 u;
unsigned char* q;
+ unsigned char* end;
for (u = 0; u < ((U32) bmp->width * (U32) bmp->height); u++) pixels[u] = 0;
byte = 0;
x = 0;
q = pixels;
+ end = pixels + bmp->width * bmp->height;
for (y = 0; y < bmp->height; )
{ count = ReadBlobByte (src);
@@ -884,7 +886,10 @@
{ /* Encoded mode. */
byte = ReadBlobByte (src);
for (i = 0; i < count; i++)
- { if (compression == 1)
+ {
+ if (q == end)
+ return 0;
+ if (compression == 1)
{ (*(q++)) = (unsigned char) byte;
}
else
@@ -896,13 +901,15 @@
else
{ /* Escape mode. */
count = ReadBlobByte (src);
- if (count == 0x01) return;
+ if (count == 0x01) return 1;
switch (count)
{
case 0x00:
{ /* End of line. */
x = 0;
y++;
+ if (y >= bmp->height)
+ return 0;
q = pixels + y * bmp->width;
break;
}
@@ -910,13 +917,20 @@
{ /* Delta mode. */
x += ReadBlobByte (src);
y += ReadBlobByte (src);
+ if (y >= bmp->height)
+ return 0;
+ if (x >= bmp->width)
+ return 0;
q = pixels + y * bmp->width + x;
break;
}
default:
{ /* Absolute mode. */
for (i = 0; i < count; i++)
- { if (compression == 1)
+ {
+ if (q == end)
+ return 0;
+ if (compression == 1)
{ (*(q++)) = ReadBlobByte (src);
}
else
@@ -943,7 +957,7 @@
byte = ReadBlobByte (src); /* end of line */
byte = ReadBlobByte (src);
- return;
+ return 1;
}
/*
@@ -1143,8 +1157,18 @@
}
}
else
- { /* Convert run-length encoded raster pixels. */
- DecodeImage (API,bmp,src,(unsigned int) bmp_info.compression,data->image);
+ {
+ if (bmp_info.bits_per_pixel == 8) /* Convert run-length encoded raster pixels. */
+ {
+ if (!DecodeImage (API,bmp,src,(unsigned int) bmp_info.compression,data->image))
+ { WMF_ERROR (API,"corrupt bmp");
+ API->err = wmf_E_BadFormat;
+ }
+ }
+ else
+ { WMF_ERROR (API,"Unexpected pixel depth");
+ API->err = wmf_E_BadFormat;
+ }
}
if (ERR (API))
--- libwmf-0.2.8.4/src/ipa/ipa.h 2015-06-08 14:46:24.590876393 +0100
+++ libwmf-0.2.8.4/src/ipa/ipa.h 2015-06-08 14:46:35.345993247 +0100
@@ -48,7 +48,7 @@
static unsigned short ReadBlobLSBShort (BMPSource*);
static unsigned long ReadBlobLSBLong (BMPSource*);
static long TellBlob (BMPSource*);
-static void DecodeImage (wmfAPI*,wmfBMP*,BMPSource*,unsigned int,unsigned char*);
+static int DecodeImage (wmfAPI*,wmfBMP*,BMPSource*,unsigned int,unsigned char*);
static void ReadBMPImage (wmfAPI*,wmfBMP*,BMPSource*);
static int ExtractColor (wmfAPI*,wmfBMP*,wmfRGB*,unsigned int,unsigned int);
static void SetColor (wmfAPI*,wmfBMP*,wmfRGB*,unsigned char,unsigned int,unsigned int);