Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.2846
tnef security update
24 August 2021
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AusCERT Security Bulletin Summary
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Product: tnef
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-18849
Reference: ESB-2020.3229
ESB-2019.4522
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2021/08/msg00025.html
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Debian LTS Advisory DLA-2748-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Thorsten Alteholz
August 23, 2021 https://wiki.debian.org/LTS
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Package : tnef
Version : 1.4.12-1.2+deb9u1
CVE ID : CVE-2019-18849
An issue has been found in tnef, a tool to unpack MIME application/ms-tnef
attachments.
Using emails with a crafted winmail.dat application/ms-tnef attachment
might allow an attacker to change .ssh/authorized_keys.
For Debian 9 stretch, this problem has been fixed in version
1.4.12-1.2+deb9u1.
We recommend that you upgrade your tnef packages.
For the detailed security status of tnef please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/tnef
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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