Package: tiff
Version: 3.9.4-2
Severity: normal
Tags: patch
User: [email protected]
Usertags: origin-ubuntu maverick ubuntu-patch
In Ubuntu, we've applied the attached patch in lucid-security to
achieve the following:
* debian/patches/fix-ycbcr-oob-read.patch fix crash on
OOB reads in putcontig8bitYCbCr11tile (LP: #591605)
We thought you might be interested in doing the same.
The patch origin is from
https://bugzilla.redhat.com/attachment.cgi?id=423329
and was committed on the 3.9 and 4.0 branch of libtiff. You can
see how it was applied on the 3.9 branch in the upstream cvs tree by
doing
cvs diff -r 1.63.2.4 -r 1.63.2.5 libtiff/tif_getimage.c
The related launchpad bug is
https://bugs.launchpad.net/bugs/591605
and includes a reproducer
https://bugs.launchpad.net/ubuntu/+source/tiff/+bug/591605/+attachment/1421368/+files/sample.tif.gz
The upstream bug report is at
http://bugzilla.maptools.org/show_bug.cgi?id=2216
Thanks!
-- System Information:
Debian Release: squeeze/sid
APT prefers maverick-updates
APT policy: (500, 'maverick-updates'), (500, 'maverick-security'), (500,
'maverick-proposed'), (500, 'maverick')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.35-19-server (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
diff -Nru tiff-3.9.4/debian/patches/fix-ycbcr-oob-read.patch tiff-3.9.4/debian/patches/fix-ycbcr-oob-read.patch
--- tiff-3.9.4/debian/patches/fix-ycbcr-oob-read.patch 1969-12-31 16:00:00.000000000 -0800
+++ tiff-3.9.4/debian/patches/fix-ycbcr-oob-read.patch 2010-08-31 10:31:44.000000000 -0700
@@ -0,0 +1,18 @@
+Description: fix crash on OOB reads in putcontig8bitYCbCr11tile
+Bug-Ubuntu: https://bugs.launchpad.net/bugs/591605
+Bug-RedHat: https://bugzilla.redhat.com/show_bug.cgi?id=603081
+Origin: https://bugzilla.redhat.com/attachment.cgi?id=423329
+
+Index: tiff-3.9.2/libtiff/tif_getimage.c
+===================================================================
+--- tiff-3.9.2.orig/libtiff/tif_getimage.c 2010-06-16 10:47:29.147649657 -0700
++++ tiff-3.9.2/libtiff/tif_getimage.c 2010-06-16 10:48:06.103986457 -0700
+@@ -2399,7 +2399,7 @@
+ }
+ break;
+ case PHOTOMETRIC_YCBCR:
+- if (img->bitspersample == 8)
++ if ((img->bitspersample==8) && (img->samplesperpixel==3))
+ {
+ if (initYCbCrConversion(img)!=0)
+ {
diff -Nru tiff-3.9.4/debian/patches/series tiff-3.9.4/debian/patches/series
--- tiff-3.9.4/debian/patches/series 2010-08-13 17:11:51.000000000 -0700
+++ tiff-3.9.4/debian/patches/series 2010-08-31 10:31:44.000000000 -0700
@@ -2,3 +2,4 @@
man-errors.patch
man-spelling.patch
tif_getimage.c-CVE-2010-2233.patch
+fix-ycbcr-oob-read.patch
