Package        : tiff
Version        : 4.0.3-12.3+deb8u8
CVE ID         : CVE-2018-17000 CVE-2018-19210 CVE-2019-7663


Brief introduction 

CVE-2018-17000

    A NULL pointer dereference in the function _TIFFmemcmp at tif_unix.c
    (called from TIFFWriteDirectoryTagTransferfunction) allows an
    attacker to cause a denial-of-service through a crafted tiff file. This
    vulnerability can be triggered by the executable tiffcp.

CVE-2018-19210

    There is a NULL pointer dereference in the TIFFWriteDirectorySec function
    in tif_dirwrite.c that will lead to a denial of service attack, as
    demonstrated by tiffset.

CVE-2019-7663

    An Invalid Address dereference was discovered in
    TIFFWriteDirectoryTagTransferfunction in libtiff/tif_dirwrite.c,
    affecting the cpSeparateBufToContigBuf function in tiffcp.c. Remote
    attackers could leverage this vulnerability to cause a denial-of-service
    via a crafted tiff file.

    We believe this is the same as CVE-2018-17000 (above).

For Debian 8 "Jessie", these problems have been fixed in version
4.0.3-12.3+deb8u8.

We recommend that you upgrade your tiff packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS