CVE-2017-9935

In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution.

In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution.

In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution.

tools/pal2rgb.c in pal2rgb in LibTIFF 4.0.9 allows remote attackers to cause a denial of service (TIFFSetupStrips heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file. (CVE-2017-17095)

In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution. (CVE-2017-9935)

In LibTIFF 4.0.9, there is a Null-Pointer Dereference in the tif_print.c TIFFPrintDirectory function, as demonstrated by a tiffinfo crash. (CVE-2017-18013)

These are all security issues fixed in the libtiff-devel-32bit-4.3.0-1.3 package on the GA media of openSUSE Tumbleweed.

This update for tiff fixes the following issues:

• CVE-2016-9453: The t2p_readwrite_pdf_image_tile function allowed remote attackers to cause a denial of service (out-of-bounds write and crash) or possibly execute arbitrary code via a JPEG file with a TIFFTAG_JPEGTABLES of length one (bsc#1011107).
• CVE-2016-5652: An exploitable heap-based buffer overflow existed in the handling of TIFF images in the TIFF2PDF tool. A crafted TIFF document can lead to a heap-based buffer overflow resulting in remote code execution. Vulnerability can be triggered via a saved TIFF file delivered by other means (bsc#1007280).
• CVE-2017-11335: There is a heap based buffer overflow in tools/tiff2pdf.c via a PlanarConfig=Contig image, which caused a more than one hundred bytes out-of-bounds write (related to the ZIPDecode function in tif_zip.c). A crafted input may lead to a remote denial of service attack or an arbitrary code execution attack (bsc#1048937).
• CVE-2016-9536: tools/tiff2pdf.c had an 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.' (bsc#1011845)
• CVE-2017-9935: In LibTIFF, there was a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution (bsc#1046077).
• CVE-2017-17973: There is a heap-based use-after-free in the t2p_writeproc function in tiff2pdf.c. (bsc#1074318)
• CVE-2015-7554: The _TIFFVGetField function in tif_dir.c allowed attackers to cause a denial of service (invalid memory write and crash) or possibly have unspecified other impact via crafted field data in an extension tag in a TIFF image (bsc#960341).
• CVE-2016-5318: Stack-based buffer overflow in the _TIFFVGetField function allowed remote attackers to crash the application via a crafted tiff (bsc#983436).
• CVE-2016-10095: Stack-based buffer overflow in the _TIFFVGetField function in tif_dir.c allowed remote attackers to cause a denial of service (crash) via a crafted TIFF file (bsc#1017690,).
• CVE-2016-10268: tools/tiffcp.c allowed remote attackers to cause a denial of service (integer underflow and heap-based buffer under-read) or possibly have unspecified other impact via a crafted TIFF image, related to 'READ of size 78490' and libtiff/tif_unix.c:115:23 (bsc#1031255)
• An overlapping of memcpy parameters was fixed which could lead to content corruption (bsc#1017691).
• Fixed an invalid memory read which could lead to a crash (bsc#1017692).
• Fixed a NULL pointer dereference in TIFFReadRawData (tiffinfo.c) that could crash the decoder (bsc#1017688).

This update for tiff fixes the following issues:

• CVE-2017-9935: There was a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution (bsc#1046077)
• CVE-2017-17973: There is a heap-based use-after-free in the t2p_writeproc function in tiff2pdf.c. (bsc#1074318)
• CVE-2018-5784: There is an uncontrolled resource consumption in the TIFFSetDirectory function of tif_dir.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted tif file. This occurs because the declared number of directory entries is not validated against the actual number of directory entries (bsc#1081690)

This update for tiff fixes the following issues:

• CVE-2018-17100: There is a int32 overflow in multiply_ms in tools/ppm2tiff.c, which can cause a denial of service (crash) or possibly have unspecified other impact via a crafted image file. (bsc#1108637)
• CVE-2018-17101: There are two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/pal2rgb.c, which can cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image file. (bsc#1108627)
• CVE-2018-17795: The function t2p_write_pdf in tiff2pdf.c allowed remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file, a similar issue to CVE-2017-9935. (bsc#1110358)
• CVE-2018-16335: newoffsets handling in ChopUpSingleUncompressedStrip in tif_dirread.c allowed remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file, as demonstrated by tiff2pdf. This is a different vulnerability than CVE-2018-15209. (bsc#1106853)

This update for tiff fixes the following issues:

• CVE-2018-17100: There is a int32 overflow in multiply_ms in tools/ppm2tiff.c, which can cause a denial of service (crash) or possibly have unspecified other impact via a crafted image file. (bsc#1108637)
• CVE-2018-17101: There are two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/pal2rgb.c, which can cause a denial of service (application crash) or possibly have unspecified other impact via a crafted image file. (bsc#1108627)
• CVE-2018-17795: The function t2p_write_pdf in tiff2pdf.c allowed remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file, a similar issue to CVE-2017-9935. (bsc#1110358)
• CVE-2018-16335: newoffsets handling in ChopUpSingleUncompressedStrip in tif_dirread.c allowed remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted TIFF file, as demonstrated by tiff2pdf. This is a different vulnerability than CVE-2018-15209. (bsc#1106853)

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.