mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-27 23:02:16 -05:00
ed5940b617
* gnu/packages/image.scm (libtiff)[replacement]: New field. (libtiff/fixed): New variable. * gnu/packages/patches/libtiff-CVE-2016-3623.patch, gnu/packages/patches/libtiff-CVE-2016-3945.patch, gnu/packages/patches/libtiff-CVE-2016-3990.patch, gnu/packages/patches/libtiff-CVE-2016-3991.patch, gnu/packages/patches/libtiff-CVE-2016-5321.patch, gnu/packages/patches/libtiff-CVE-2016-5323.patch: New files. * gnu/local.mk (dist_patch_DATA): Add them.
31 lines
1.1 KiB
Diff
31 lines
1.1 KiB
Diff
Fix CVE-2016-3990 (write buffer overflow in PixarLogEncode if more input
|
|
samples are provided than expected by PixarLogSetupEncode).
|
|
|
|
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3990
|
|
http://bugzilla.maptools.org/show_bug.cgi?id=2544
|
|
|
|
Patch extracted from upstream CVS repo with:
|
|
$ cvs diff -u -r1.45 -r1.46 libtiff/tif_pixarlog.c
|
|
|
|
Index: libtiff/tif_pixarlog.c
|
|
===================================================================
|
|
RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_pixarlog.c,v
|
|
retrieving revision 1.45
|
|
retrieving revision 1.46
|
|
diff -u -r1.45 -r1.46
|
|
--- libtiff/libtiff/tif_pixarlog.c 28 Jun 2016 15:37:33 -0000 1.45
|
|
+++ libtiff/libtiff/tif_pixarlog.c 15 Aug 2016 20:49:48 -0000 1.46
|
|
@@ -1141,6 +1141,13 @@
|
|
}
|
|
|
|
llen = sp->stride * td->td_imagewidth;
|
|
+ /* Check against the number of elements (of size uint16) of sp->tbuf */
|
|
+ if( n > td->td_rowsperstrip * llen )
|
|
+ {
|
|
+ TIFFErrorExt(tif->tif_clientdata, module,
|
|
+ "Too many input bytes provided");
|
|
+ return 0;
|
|
+ }
|
|
|
|
for (i = 0, up = sp->tbuf; i < n; i += llen, up += llen) {
|
|
switch (sp->user_datafmt) {
|