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AUSCERT External Security Bulletin Redistribution
tnef security update
2 December 2019
AusCERT Security Bulletin Summary
Operating System: Debian GNU/Linux 8
Impact/Access: Unauthorised Access -- Remote with User Interaction
CVE Names: CVE-2019-18849
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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
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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