tnef: Unauthorised Access -- Remote with User Interaction

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.4522
                           tnef security update
                              2 December 2019

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

Product:           tnef
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Unauthorised Access -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-18849  

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2019/11/msg00035.html

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Package        : tnef
Version        : 1.4.9-1+deb8u4
CVE ID         : CVE-2019-18849
Debian Bug     : 944851


In tnef, an attacker may be able to write to the victim's
.ssh/authorized_keys file via an e-mail message with a crafted
winmail.dat application/ms-tnef attachment, because of a heap-based
buffer over-read involving strdup.

For Debian 8 "Jessie", this problem has been fixed in version
1.4.9-1+deb8u4.

We recommend that you upgrade your tnef 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

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===========================================================================
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The University of Queensland
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