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Debian Security Advisory DSA-3798-1                   security@debian.org
https://www.debian.org/security/                       Sebastien Delafond
March 01, 2017                        https://www.debian.org/security/faq
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Package        : tnef
CVE ID         : CVE-2017-6307 CVE-2017-6308 CVE-2017-6309 CVE-2017-6310
Debian Bug     : 856117

Eric Sesterhenn, from X41 D-Sec GmbH, discovered several
vulnerabilities in tnef, a tool used to unpack MIME attachments of
type "application/ms-tnef". Multiple heap overflows, type confusions
and out of bound reads and writes could be exploited by tricking a
user into opening a malicious attachment. This would result in denial
of service via application crash, or potential arbitrary code
execution.

For the stable distribution (jessie), these problems have been fixed in
version 1.4.9-1+deb8u1.

We recommend that you upgrade your tnef packages.

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

Mailing list: debian-security-announce@lists.debian.org
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