tiff: Denial of Service -- Remote with User Interaction

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1662
               [SECURITY] [DLA 1391-1] tiff security update
                                4 June 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           tiff
Publisher:         Debian
Operating System:  Debian GNU/Linux 7
Impact/Access:     Denial of Service -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-5784 CVE-2017-11613 

Reference:         ESB-2018.0864
                   ESB-2018.0800

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2018/05/msg00022.html

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Package        : tiff
Version        : 4.0.2-6+deb7u21
CVE ID         : CVE-2017-11613 CVE-2018-5784
Debian Bug     : #869823 #890441

Multiple vulnerabilities have been discovered in the libtiff library and
the included tools, which may result in denial of service:

CVE-2017-11613

    Ddenial of service vulnerability in the TIFFOpen function. A crafted
    input will lead to a denial of service attack and can either make the
    system hand or trigger the OOM killer.

CVE-2018-5784

    There is an uncontrolled resource consumption in TIFFSetDirectory function
    of src/libtiff/tif_dir.c, which can cause denial of service through a
    crafted tif file.

For Debian 7 "Wheezy", these problems have been fixed in version
4.0.2-6+deb7u21.

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

cheers,
Holger

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