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* [PATCH 1/1] gnu: libtiff: Fix CVE-2016-9297.
@ 2016-11-15 19:17 Leo Famulari
  2016-11-16 18:08 ` Kei Kebreau
  0 siblings, 1 reply; 3+ messages in thread
From: Leo Famulari @ 2016-11-15 19:17 UTC (permalink / raw)
  To: guix-devel

* gnu/packages/patches/libtiff-CVE-2016-9297.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/image.scm (libtiff/fixed)[source]: Use it.
---
 gnu/local.mk                                     |  1 +
 gnu/packages/image.scm                           |  3 +-
 gnu/packages/patches/libtiff-CVE-2016-9297.patch | 52 ++++++++++++++++++++++++
 3 files changed, 55 insertions(+), 1 deletion(-)
 create mode 100644 gnu/packages/patches/libtiff-CVE-2016-9297.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index 08f99c4..513bd34 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -667,6 +667,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/libtiff-CVE-2016-5323.patch		\
   %D%/packages/patches/libtiff-CVE-2016-5652.patch		\
   %D%/packages/patches/libtiff-CVE-2016-9273.patch		\
+  %D%/packages/patches/libtiff-CVE-2016-9297.patch		\
   %D%/packages/patches/libtiff-oob-accesses-in-decode.patch	\
   %D%/packages/patches/libtiff-oob-write-in-nextdecode.patch	\
   %D%/packages/patches/libtool-skip-tests2.patch		\
diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index a40b212..d38344a 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -300,7 +300,8 @@ collection of tools for doing simple manipulations of TIFF images.")
                          "libtiff-CVE-2016-5321.patch"
                          "libtiff-CVE-2016-5323.patch"
                          "libtiff-CVE-2016-5652.patch"
-                         "libtiff-CVE-2016-9273.patch"))))))
+                         "libtiff-CVE-2016-9273.patch"
+                         "libtiff-CVE-2016-9297.patch"))))))
 
 (define-public libwmf
   (package
diff --git a/gnu/packages/patches/libtiff-CVE-2016-9297.patch b/gnu/packages/patches/libtiff-CVE-2016-9297.patch
new file mode 100644
index 0000000..c9207bb
--- /dev/null
+++ b/gnu/packages/patches/libtiff-CVE-2016-9297.patch
@@ -0,0 +1,52 @@
+Fix CVE-2016-9297:
+
+https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9297
+http://bugzilla.maptools.org/show_bug.cgi?id=2590
+
+Patch copied from upstream source repository.
+
+2016-11-11 Even Rouault <even.rouault at spatialys.com>
+
+        * libtiff/tif_dirread.c: in TIFFFetchNormalTag(), make sure that
+        values of tags with TIFF_SETGET_C16_ASCII / TIFF_SETGET_C32_ASCII
+        access are null terminated, to avoid potential read outside buffer
+        in _TIFFPrintField().
+        Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2590
+
+
+/cvs/maptools/cvsroot/libtiff/ChangeLog,v  <--  ChangeLog
+new revision: 1.1154; previous revision: 1.1153
+/cvs/maptools/cvsroot/libtiff/libtiff/tif_dirread.c,v  <-- 
+libtiff/tif_dirread.c
+new revision: 1.203; previous revision: 1.202Index: libtiff/libtiff/tif_dirread.c
+===================================================================
+RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_dirread.c,v
+retrieving revision 1.202
+retrieving revision 1.203
+diff -u -r1.202 -r1.203
+--- libtiff/libtiff/tif_dirread.c	11 Nov 2016 20:01:55 -0000	1.202
++++ libtiff/libtiff/tif_dirread.c	11 Nov 2016 20:22:01 -0000	1.203
+@@ -5000,6 +5000,11 @@
+ 					if (err==TIFFReadDirEntryErrOk)
+ 					{
+ 						int m;
++                        if( data[dp->tdir_count-1] != '\0' )
++                        {
++                            TIFFWarningExt(tif->tif_clientdata,module,"ASCII value for tag \"%s\" does not end in null byte. Forcing it to be null",fip->field_name);
++                            data[dp->tdir_count-1] = '\0';
++                        }
+ 						m=TIFFSetField(tif,dp->tdir_tag,(uint16)(dp->tdir_count),data);
+ 						if (data!=0)
+ 							_TIFFfree(data);
+@@ -5172,6 +5177,11 @@
+ 				if (err==TIFFReadDirEntryErrOk)
+ 				{
+ 					int m;
++                    if( data[dp->tdir_count-1] != '\0' )
++                    {
++                        TIFFWarningExt(tif->tif_clientdata,module,"ASCII value for tag \"%s\" does not end in null byte. Forcing it to be null",fip->field_name);
++                        data[dp->tdir_count-1] = '\0';
++                    }
+ 					m=TIFFSetField(tif,dp->tdir_tag,(uint32)(dp->tdir_count),data);
+ 					if (data!=0)
+ 						_TIFFfree(data);
-- 
2.10.2

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Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2016-11-15 19:17 [PATCH 1/1] gnu: libtiff: Fix CVE-2016-9297 Leo Famulari
2016-11-16 18:08 ` Kei Kebreau
2016-11-16 19:13   ` Leo Famulari

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