通过对各种与 tiff 有关的二进制文件进行模糊测试，已发现多个安全漏洞。特制的 TIFF 图像允许远程攻击导致拒绝服务，或者在某些情况下通过除零导致任意代码执行、越界写入、整数和堆溢出。CVE-2016-3622 在 LibTIFF 4.0.6 及更低版本中，tiff2rgba 工具中 tif_predict.c 中的 fpAcc 函数允许远程攻击者通过特制的 TIFF 图像造成拒绝服务（除零错误）。CVE-2016-3623 LibTIFF 4.0.6 及更低版本中的 rgb2ycbcr 工具允许远程攻击者通过将 (1) v 或 (2) h 参数设置为 0 来造成拒绝服务（除零）。（已与 CVE-2016-3624 一起修复。）CVE-2016-3624 在 LibTIFF 4.0.6 及更低版本中，rgb2ycbcr 工具中的 cvtClump 函数允许远程攻击者通过将“-v”选项设置为 -1 来造成拒绝服务（越界写入）。CVE-2016-3945 在 LibTIFF 4.0.6 及更低版本中，tiff2rgba 工具中的 (1) cvt_by_strip 和 (2) cvt_by_tile 函数中存在多个整数溢出，在启用 -b 模式时，允许远程攻击者通过特制的 TIFF 图像触发越界写入来造成拒绝服务（崩溃）或执行任意代码。CVE-2016-3990 在 LibTIFF 4.0.6 及更低版本中，tif_pixarlog.c 中的 horizontalDifference8 函数存在基于堆的缓冲区溢出，允许远程攻击者通过向 tiffcp 发送特制的 TIFF 图像造成拒绝服务（崩溃）或执行任意代码。CVE-2016-9533 libtiff 4.0.6 中的 tif_pixarlog.c 在堆分配的缓冲区中有越界写入漏洞。已作为 MSVR 35094 报告，又称“PixarLog horizontalDifference 堆缓冲区溢出”。CVE-2016-9534 libtiff 4.0.6 中的 tif_write.c 在 TIFFFlushData1() 的错误代码路径中存在一个问题，未重置 tif_rawcc 和 tif_rawcp 成员。已作为 MSVR 35095 报告，又称“TIFFFlushData1 堆缓冲区溢出”。CVE-2016-9535 libtiff 4.0.6 中的 tif_predict.h 和 tif_predict.c 存在断言，在使用子采样处理 YCbCr 等不寻常的切片大小时，可能会导致调试模式下的断言失败，或者发布模式下的缓冲区溢出。已作为 MSVR 35105 报告，又称“Predictor 堆缓冲区溢出”。CVE-2016-9536 libtiff 4.0.6 中的 tools/tiff2pdf.c 在 t2p_process_jpeg_strip() 中堆分配的缓冲区中有越界写入漏洞。已作为 MSVR 35098 报告，又称“t2p_process_jpeg_strip 堆缓冲区溢出”。CVE-2016-9537 libtiff 4.0.6 中的 tools/tiffcrop.c 在缓冲区中有越界写入漏洞。已作为 MSVR 35093、MSVR 35096 和 MSVR 35097 报告。CVE-2016-9538 libtiff 4.0.6 中的 tools/tiffcrop.c 由于 uint16 整数溢出而在 readContigStripsIntoBuffer() 中读取到未定义缓冲区。已作为 MSVR 35100 报告。CVE-2016-9540 libtiff 4.0.6 中的 tools/tiffcp.c 在相对图像宽度具有奇数切片宽度的切片图像上有越界写入。已作为 MSVR 35103 报告，又称 cpStripToTile 堆缓冲区溢出。CVE-2016-10092 tiffcrop 中存在堆缓冲区溢出 CVE-2016-10093 tiffcp 中的 uint32 下溢/上溢可导致基于堆的缓冲区溢出 CVE-2017-5225 LibTIFF 版本 4.0.7 容易受到 tools/tiffcp 中堆缓冲区溢出的影响，导致通过特制 BitsPerSample 值造成 DoS 或代码执行。错误 #846837 TIFFFillStrip (tif_read.c) 中存在基于堆的缓冲区溢出 对于 Debian 7“Wheezy”，这些问题已在版本 4.0.2-6+deb7u9 中修复。建议您升级 tiff 程序包。注意：Tenable Network Security 已直接从 DLA 安全公告中提取上述描述块。Tenable 已尝试在不引入其他问题的情况下，尽可能进行自动整理和排版。

Security Fix(es) :

  - Multiple flaws have been discovered in libtiff. A remote     attacker could exploit these flaws to cause a crash or     memory corruption and, possibly, execute arbitrary code     by tricking an application linked against libtiff into     processing specially crafted files. (CVE-2016-9533,     CVE-2016-9534, CVE-2016-9535)

  - Multiple flaws have been discovered in various libtiff     tools (tiff2pdf, tiffcrop, tiffcp, bmp2tiff). By     tricking a user into processing a specially crafted     file, a remote attacker could exploit these flaws to     cause a crash or memory corruption and, possibly,     execute arbitrary code with the privileges of the user     running the libtiff tool. (CVE-2015-8870, CVE-2016-5652,     CVE-2016-9540, CVE-2016-9537, CVE-2016-9536)

From Red Hat Security Advisory 2017:0225 :

An update for libtiff is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.

Security Fix(es) :

* Multiple flaws have been discovered in libtiff. A remote attacker could exploit these flaws to cause a crash or memory corruption and, possibly, execute arbitrary code by tricking an application linked against libtiff into processing specially crafted files.
(CVE-2016-9533, CVE-2016-9534, CVE-2016-9535)

* Multiple flaws have been discovered in various libtiff tools (tiff2pdf, tiffcrop, tiffcp, bmp2tiff). By tricking a user into processing a specially crafted file, a remote attacker could exploit these flaws to cause a crash or memory corruption and, possibly, execute arbitrary code with the privileges of the user running the libtiff tool. (CVE-2015-8870, CVE-2016-5652, CVE-2016-9540, CVE-2016-9537, CVE-2016-9536)

According to the versions of the libtiff packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Multiple flaws have been discovered in libtiff. A     remote attacker could exploit these flaws to cause a     crash or memory corruption and, possibly, execute     arbitrary code by tricking an application linked     against libtiff into processing specially crafted     files. (CVE-2016-9533, CVE-2016-9534, CVE-2016-9535)

  - Multiple flaws have been discovered in various libtiff     tools (tiff2pdf, tiffcrop, tiffcp, bmp2tiff). By     tricking a user into processing a specially crafted     file, a remote attacker could exploit these flaws to     cause a crash or memory corruption and, possibly,     execute arbitrary code with the privileges of the user     running the libtiff tool. (CVE-2015-8870,     CVE-2016-5652, CVE-2016-9540, CVE-2016-9537,     CVE-2016-9536)

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

According to the versions of the compat-libtiff3 package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The (1) putcontig8bitYCbCr21tile function in     tif_getimage.c or (2) NeXTDecode function in tif_next.c     in LibTIFF allows remote attackers to cause a denial of     service (uninitialized memory access) via a crafted     TIFF image, as demonstrated by libtiff-cvs-1.tif and     libtiff-cvs-2.tif.(CVE-2014-8127,CVE-2014-8129,CVE-2014
    -8130,CVE-2014-9655)

  - A flaw was discovered in the bmp2tiff utility. By     tricking a user into processing a specially crafted     file, a remote attacker could exploit this flaw to     cause a crash or memory corruption and, possibly,     execute arbitrary code with the privileges of the user     running the libtiff     tool.(CVE-2014-9330,CVE-2015-7554,CVE-2015-8668,CVE-201     5-8665,CVE-2015-8781,CVE-2016-3632,CVE-2016-3945,CVE-20     16-3990,CVE-2016-3991,CVE-2016-5320,CVE-2016-5652,CVE-2     015-8683)

  - tools/tiffcp.c in libtiff 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-2016-9540)

  - tif_predict.h and tif_predict.c in libtiff 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-2016-9535,CVE-2016-9533,CVE-     2016-9534,CVE-2016-9536,CVE-2016-9537)

  - The NeXTDecode function in tif_next.c in LibTIFF allows     remote attackers to cause a denial of service     (uninitialized memory access) via a crafted TIFF image,     as demonstrated by libtiff5.tif.(CVE-2015-1547)

  - The NeXTDecode function in tif_next.c in LibTIFF allows     remote attackers to cause a denial of service     (out-of-bounds write) via a crafted TIFF image, as     demonstrated by libtiff5.tif.(CVE-2015-8784)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS 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.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - libtiff: Heap-based buffer over-read in bmp2tiff (CVE-2017-9117)

  - LibTIFF prior to 4.0.4, as used in Apple iOS before 8.4 and OS X before 10.10.4 and other products, allows     remote attackers to cause a denial of service (out-of-bounds write) via a crafted TIFF image.
    (CVE-2014-8128)

  - Integer overflow in tools/bmp2tiff.c in LibTIFF before 4.0.4 allows remote attackers to cause a denial of     service (heap-based buffer over-read), or possibly obtain sensitive information from process memory, via     crafted width and length values in RLE4 or RLE8 data in a BMP file. (CVE-2015-8870)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

ID	名稱	產品	系列	已發布	已更新	嚴重性
96704	Debian DLA-795-1：tiff 安全更新	Nessus	Debian Local Security Checks	2017/1/24	2021/1/11	critical
96974	Scientific Linux Security Update : libtiff on SL6.x, SL7.x i386/x86_64 (20170201)	Nessus	Scientific Linux Local Security Checks	2017/2/3	2021/1/14	critical
96945	Oracle Linux 6 / 7 : libtiff (ELSA-2017-0225)	Nessus	Oracle Linux Local Security Checks	2017/2/2	2021/1/14	critical
99866	EulerOS 2.0 SP2 : libtiff (EulerOS-SA-2017-1020)	Nessus	Huawei Local Security Checks	2017/5/1	2021/1/6	critical
99888	EulerOS 2.0 SP2 : compat-libtiff3 (EulerOS-SA-2017-1043)	Nessus	Huawei Local Security Checks	2017/5/1	2021/4/19	critical
96704	Debian DLA-795-1 : tiff security update	Nessus	Debian Local Security Checks	2017/1/24	2021/1/11	critical
198475	RHEL 7 : libtiff (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	2024/6/3	2024/6/3	critical

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