DSA-3762

94484

94753

https://github.com/vadz/libtiff/commit/43c0b81a818640429317c80fea1e66771e85024b#diff-c8b4b355f9b5c06d585b23138e1c185f

The remote host is running a version of macOS that is 10.12.x prior to 10.12.4. It is, therefore, affected by multiple vulnerabilities in multiple components, some of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these remote code execution vulnerabilities by convincing a user to visit a specially crafted website, resulting in the execution of arbitrary code in the context of the current user. The affected components are as follows :

  - apache
  - apache_mod_php
  - AppleGraphicsPowerManagement
  - AppleRAID
  - Audio
  - Bluetooth
  - Carbon
  - CoreGraphics
  - CoreMedia
  - CoreText
  - curl
  - EFI
  - FinderKit
  - FontParser
  - HTTPProtocol
  - Hypervisor
  - iBooks
  - ImageIO
  - Intel Graphics Driver
  - IOATAFamily
  - IOFireWireAVC
  - IOFireWireFamily
  - Kernel
  - Keyboards
  - libarchive
  - libc++abi
  - LibreSSL
  - MCX Client
  - Menus
  - Multi-Touch
  - OpenSSH
  - OpenSSL
  - Printing
  - python
  - QuickTime
  - Security
  - SecurityFoundation
  - sudo
  - System Integrity Protection
  - tcpdump
  - tiffutil
  - WebKit

It was discovered that LibTIFF incorrectly handled certain malformed images. If a user or automated system were tricked into opening a specially crafted image, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Numerous security vulnerabilities have been found through fuzzing on various tiff-related binaries. Crafted TIFF images allows remote attacks to cause denial of service or, in certain cases arbitrary code execution through divide-by-zero, out of bunds write, integer and heap overflow.

CVE-2016-3622

The fpAcc function in tif_predict.c in the tiff2rgba tool in LibTIFF 4.0.6 and earlier allows remote attackers to cause a denial of service (divide-by-zero error) via a crafted TIFF image.

CVE-2016-3623

The rgb2ycbcr tool in LibTIFF 4.0.6 and earlier allows remote attackers to cause a denial of service (divide-by-zero) by setting the (1) v or (2) h parameter to 0. (Fixed along with CVE-2016-3624.)

CVE-2016-3624

The cvtClump function in the rgb2ycbcr tool in LibTIFF 4.0.6 and earlier allows remote attackers to cause a denial of service (out-of-bounds write) by setting the '-v' option to -1.

CVE-2016-3945

Multiple integer overflows in the (1) cvt_by_strip and (2) cvt_by_tile functions in the tiff2rgba tool in LibTIFF 4.0.6 and earlier, when -b mode is enabled, allow remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted TIFF image, which triggers an out-of-bounds write.

CVE-2016-3990

Heap-based buffer overflow in the horizontalDifference8 function in tif_pixarlog.c in LibTIFF 4.0.6 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted TIFF image to tiffcp.

CVE-2016-9533

tif_pixarlog.c in libtiff 4.0.6 has out-of-bounds write vulnerabilities in heap allocated buffers. Reported as MSVR 35094, aka 'PixarLog horizontalDifference heap-buffer-overflow.'

CVE-2016-9534

tif_write.c in libtiff 4.0.6 has an issue in the error code path of TIFFFlushData1() that didn't reset the tif_rawcc and tif_rawcp members. Reported as MSVR 35095, aka 'TIFFFlushData1 heap-buffer-overflow.'

CVE-2016-9535

tif_predict.h and tif_predict.c in libtiff 4.0.6 have assertions that can lead to assertion failures in debug mode, or buffer overflows in release mode, when dealing with unusual tile size like YCbCr with subsampling. Reported as MSVR 35105, aka 'Predictor heap-buffer-overflow.'

CVE-2016-9536

tools/tiff2pdf.c in libtiff 4.0.6 has out-of-bounds write vulnerabilities in heap allocated buffers in t2p_process_jpeg_strip().
Reported as MSVR 35098, aka 't2p_process_jpeg_strip heap-buffer-overflow.'

CVE-2016-9537

tools/tiffcrop.c in libtiff 4.0.6 has out-of-bounds write vulnerabilities in buffers. Reported as MSVR 35093, MSVR 35096, and MSVR 35097.

CVE-2016-9538

tools/tiffcrop.c in libtiff 4.0.6 reads an undefined buffer in readContigStripsIntoBuffer() because of a uint16 integer overflow.
Reported as MSVR 35100.

CVE-2016-9540

tools/tiffcp.c in libtiff 4.0.6 has an out-of-bounds write on tiled images with odd tile width versus image width. Reported as MSVR 35103, aka cpStripToTile heap-buffer-overflow.

CVE-2016-10092

heap-buffer-overflow in tiffcrop

CVE-2016-10093 uint32 underflow/overflow that can cause heap-based buffer overflow in tiffcp

CVE-2017-5225

LibTIFF version 4.0.7 is vulnerable to a heap buffer overflow in the tools/tiffcp resulting in DoS or code execution via a crafted BitsPerSample value.

Bug #846837

heap-based buffer verflow in TIFFFillStrip (tif_read.c)

For Debian 7 'Wheezy', these problems have been fixed in version 4.0.2-6+deb7u9.

We recommend that you upgrade your tiff packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Multiple vulnerabilities have been discovered in the libtiff library and the included tools tiff2rgba, rgb2ycbcr, tiffcp, tiffcrop, tiff2pdf and tiffsplit, which may result in denial of service, memory disclosure or the execution of arbitrary code.

There were additional vulnerabilities in the tools bmp2tiff, gif2tiff, thumbnail and ras2tiff, but since these were addressed by the libtiff developers by removing the tools altogether, no patches are available and those tools were also removed from the tiff package in Debian stable. The change had already been made in Debian stretch before and no applications included in Debian are known to rely on these scripts.
If you use those tools in custom setups, consider using a different conversion/thumbnailing tool.

ID	Name	Product	Family	Severity
99134	macOS 10.12.x < 10.12.4 Multiple Vulnerabilities (httpoxy)	Nessus	MacOS X Local Security Checks	high
97434	Ubuntu 14.04 LTS / 16.04 LTS / 16.10 : tiff vulnerabilities (USN-3212-1)	Nessus	Ubuntu Local Security Checks	high
96704	Debian DLA-795-1 : tiff security update	Nessus	Debian Local Security Checks	high
96495	Debian DSA-3762-1 : tiff - security update	Nessus	Debian Local Security Checks	high

CVE-2016-9538

Description

References

Details

Risk Information

CVSS v2.0

CVSS v3.0

Vulnerable Software

Configuration 1

Tenable Plugins