openSUSE Security Update : tiff (openSUSE-2016-1425)

This script is Copyright (C) 2016 Tenable Network Security, Inc.

Synopsis :

The remote openSUSE host is missing a security update.

Description :

Tiff was updated to version 4.0.7. This update fixes the following
issues :

- libtiff/tif_aux.c

+ Fix crash in TIFFVGetFieldDefaulted() when requesting
Predictor tag and that the zip/lzw codec is not

- libtiff/tif_compress.c

+ Make TIFFNoDecode() return 0 to indicate an error and
make upper level read routines treat it accordingly.

- libtiff/tif_dir.c

+ Discard values of SMinSampleValue and SMaxSampleValue
when they have been read and the value of
SamplesPerPixel is changed afterwards (like when reading
a OJPEG compressed image with a missing SamplesPerPixel
tag, and whose photometric is RGB or YCbCr, forcing
SamplesPerPixel being 3). Otherwise when rewriting the
directory (for example with tiffset, we will expect 3
values whereas the array had been allocated with just
one), thus causing a out of bound read access.
(CVE-2014-8127, boo#914890, duplicate: CVE-2016-3658,

- libtiff/tif_dirread.c

+ In TIFFFetchNormalTag(), do not dereference NULL pointer
when values of tags with
0-byte arrays. (CVE-2016-9448, boo#1011103)

+ In TIFFFetchNormalTag(), make sure that values of tags
are null terminated, to avoid potential read outside
buffer in _TIFFPrintField(). (CVE-2016-9297,

+ Prevent reading ColorMap or TransferFunction if
BitsPerPixel > 24, so as to avoid huge memory allocation
and file read attempts

+ Reject images with OJPEG compression that have no
TileOffsets/StripOffsets tag, when OJPEG compression is
disabled. Prevent NULL pointer dereference in
TIFFReadRawStrip1() and other functions that expect
td_stripbytecount to be non NULL.

+ When compiled with DEFER_STRILE_LOAD, fix regression,
when reading a one-strip file without a StripByteCounts

+ Workaround false positive warning of Clang Static
Analyzer about NULL pointer dereference in

- libtiff/tif_dirwrite.c

+ Avoid NULL pointer dereference on td_stripoffset when
writing directory, if FIELD_STRIPOFFSETS was
artificially set for a hack case in OJPEG case. Fixes
(CVE-2014-8127, boo#914890, duplicate: CVE-2016-3658,

+ Fix truncation to 32 bit of file offsets in
TIFFLinkDirectory() and TIFFWriteDirectorySec() when
aligning directory offsets on an even offset (affects

- libtiff/tif_dumpmode.c

+ DumpModeEncode() should return 0 in case of failure so
that the above mentionned functions detect the error.

- libtiff/tif_fax3.c

+ remove dead assignment in Fax3PutEOLgdal().

- libtiff/tif_fax3.h

+ make Param member of TIFFFaxTabEnt structure a uint16 to
reduce size of the binary.

- libtiff/tif_getimage.c

+ Fix out-of-bound reads in TIFFRGBAImage interface in
case of unsupported values of
SamplesPerPixel/ExtraSamples for LogLUV/CIELab. Add
explicit call to TIFFRGBAImageOK() in
TIFFRGBAImageBegin(). Fix CVE-2015-8665 and

+ TIFFRGBAImageOK: Reject attempts to read floating point

- libtiff/tif_luv.c

+ Fix potential out-of-bound writes in decode functions in
non debug builds by replacing assert()s by regular if
( Fix
potential out-of-bound reads in case of short input

+ Validate that for COMPRESSION_SGILOG and
PHOTOMETRIC_LOGL, there is only one sample per pixel.
Avoid potential invalid memory write on
corrupted/unexpected images when using the
TIFFRGBAImageBegin() interface

- libtiff/tif_next.c

+ Fix potential out-of-bound write in NeXTDecode()

- libtiff/tif_pixarlog.c

+ Avoid zlib error messages to pass a NULL string to %s
formatter, which is undefined behaviour in sprintf().

+ Fix out-of-bounds write vulnerabilities in heap
allocated buffers. Reported as MSVR 35094.

+ Fix potential buffer write overrun in PixarLogDecode()
on corrupted/unexpected images (CVE-2016-5875,

- libtiff/tif_predict.c

+ PredictorSetup: Enforce bits-per-sample requirements of
floating point predictor (3). (CVE-2016-3622,

- libtiff/tif_predict.h, libtiff/tif_predict.c

+ Replace assertions by runtime checks to avoid assertions
in debug mode, or buffer overflows in release mode. Can
happen when dealing with unusual tile size like YCbCr
with subsampling. Reported as MSVR 35105.

- libtiff/tif_read.c

+ Fix out-of-bounds read on memory-mapped files in
TIFFReadRawStrip1() and TIFFReadRawTile1() when
stripoffset is beyond tmsize_t max value

+ Make TIFFReadEncodedStrip() and TIFFReadEncodedTile()
directly use user provided buffer when no compression
(and other conditions) to save a memcpy().

- libtiff/tif_strip.c

+ Make TIFFNumberOfStrips() return the td->td_nstrips
value when it is non-zero, instead of recomputing it.
This is needed in TIFF_STRIPCHOP mode where td_nstrips
is modified. Fixes a read outsize of array in tiffsplit
(or other utilities using TIFFNumberOfStrips()).
(CVE-2016-9273, boo#1010163)

- libtiff/tif_write.c

+ Fix issue in error code path of TIFFFlushData1() that
didn't reset the tif_rawcc and tif_rawcp members. I'm
not completely sure if that could happen in practice
outside of the odd behaviour of t2p_seekproc() of
tiff2pdf). The report points that a better fix could be
to check the return value of TIFFFlushData1() in places
where it isn't done currently, but it seems this patch
is enough. Reported as MSVR 35095.

+ Make TIFFWriteEncodedStrip() and TIFFWriteEncodedTile()
directly use user provided buffer when no compression to
save a memcpy().

+ TIFFWriteEncodedStrip() and TIFFWriteEncodedTile()
should return -1 in case of failure of tif_encodestrip()
as documented

- tools/fax2tiff.c

+ Fix segfault when specifying -r without argument.

- tools/

+ The libtiff tools bmp2tiff, gif2tiff, ras2tiff,
sgi2tiff, sgisv, and ycbcr are completely removed from
the distribution. The libtiff tools rgb2ycbcr and
thumbnail are only built in the build tree for testing.
Old files are put in new 'archive' subdirectory of the
source repository, but not in distribution archives.
These changes are made in order to lessen the
maintenance burden.

- tools/tiff2bw.c

+ Fix weight computation that could result of color value
overflow (no security implication). Fix

- tools/tiff2pdf.c

+ Avoid undefined behaviour related to overlapping of
source and destination buffer in memcpy() call in

+ Fix out-of-bounds write vulnerabilities in heap allocate
buffer in t2p_process_jpeg_strip(). Reported as MSVR

+ Fix potential integer overflows on 32 bit builds in

+ Fix read -largely- outsize of buffer in
t2p_readwrite_pdf_image_tile(), causing crash, when
reading a JPEG compressed image with TIFFTAG_JPEGTABLES
length being one. (CVE-2016-9453, boo#1011107)

+ Fix write buffer overflow of 2 bytes on JPEG compressed
images. Also prevents writing 2 extra uninitialized
bytes to the file stream. (TALOS-CAN-0187,
CVE-2016-5652, boo#1007280)

- tools/tiffcp.c

+ Fix out-of-bounds write on tiled images with odd tile
width vs image width. Reported as MSVR 35103.

+ Fix read of undefined variable in case of missing
required tags. Found on test case of MSVR 35100.

- tools/tiffcrop.c

+ Avoid access outside of stack allocated array on a tiled
separate TIFF with more than 8 samples per pixel.
(CVE-2016-5321, CVE-2016-5323, boo#984813, boo#984815)

+ Fix memory leak in (recent) error code path.

+ Fix multiple uint32 overflows in
writeBufferToContigTiles() and
writeBufferToSeparateTiles() that could cause heap
buffer overflows.

+ Fix out-of-bound read of up to 3 bytes in
readContigTilesIntoBuffer(). Reported as MSVR 35092.

+ Fix read of undefined buffer in
readContigStripsIntoBuffer() due to uint16 overflow.
Reported as MSVR 35100.

+ Fix various out-of-bounds write vulnerabilities in heap
or stack allocated buffers. Reported as MSVR 35093, MSVR
35096 and MSVR 35097.

+ readContigTilesIntoBuffer: Fix signed/unsigned
comparison warning.

- tools/tiffdump.c

+ Fix a few misaligned 64-bit reads warned by -fsanitize

+ ReadDirectory: Remove uint32 cast to_TIFFmalloc()
argument which resulted in Coverity report. Added more
mutiplication overflow checks

- tools/tiffinfo.c

+ Fix out-of-bound read on some tiled images.

+ TIFFReadContigTileData: Fix signed/unsigned comparison

+ TIFFReadSeparateTileData: Fix signed/unsigned comparison

See also :

Solution :

Update the affected tiff packages.

Risk factor :

High / CVSS Base Score : 7.5

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