CVE-2018-10779

TIFFWriteScanline in tif_write.c in LibTIFF 3.8.2 has a heap-based buffer over-read, as demonstrated by bmp2tiff.

TIFFWriteScanline in tif_write.c in LibTIFF 3.8.2 has a heap-based buffer over-read, as demonstrated by bmp2tiff.

TIFFWriteScanline in tif_write.c in LibTIFF 3.8.2 has a heap-based buffer over-read, as demonstrated by bmp2tiff.

Heap-based buffer overflow in tif_packbits.c in libtiff 4.0.6 and earlier allows remote attackers to crash the application via a crafted bmp file (CVE-2016-5319).

In LibTIFF 4.0.9, there is a heap-based buffer over-read in the function PackBitsEncode in tif_packbits.c (CVE-2017-17942).

TIFFWriteScanline in tif_write.c in LibTIFF 3.8.2 has a heap-based buffer over-read, as demonstrated by bmp2tiff (CVE-2018-10779).

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:

The following security vulnerabilities were addressed:

• CVE-2015-8668: Fixed a heap-based buffer overflow in the PackBitsPreEncode function in tif_packbits.c in bmp2tiff, which allowed remote attackers to execute arbitrary code or cause a denial of service via a large width field in a specially crafted BMP image. (bsc#960589)
• CVE-2018-10779: Fixed a heap-based buffer over-read in TIFFWriteScanline() in tif_write.c (bsc#1092480)
• CVE-2017-17942: Fixed a heap-based buffer overflow in the function PackBitsEncode in tif_packbits.c. (bsc#1074186)
• CVE-2016-5319: Fixed a beap-based buffer overflow in bmp2tiff (bsc#983440)

This update for tiff fixes the following issues:

Security issues fixed:

• CVE-2018-10779: Fixed a heap-based buffer overflow in TIFFWriteScanline() in tif_write.c (bsc#1092480)
• CVE-2017-17942: Fixed a heap-based buffer overflow in the function PackBitsEncode in tif_packbits.c. (bsc#1074186)
• CVE-2016-5319: Fixed a beap-based buffer overflow in bmp2tiff (bsc#983440)

This update for tiff fixes the following issues:

Security issue fixed:

• CVE-2018-10779: TIFFWriteScanline in tif_write.c had a heap-based buffer over-read, as demonstrated by bmp2tiff.(bsc#1092480)
• 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.