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Debian Security Advisory 3798-1

Debian Security Advisory 3798-1
Posted Mar 2, 2017
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3798-1 - 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.

tags | advisory, denial of service, overflow, arbitrary, vulnerability, code execution
systems | linux, debian
advisories | CVE-2017-6307, CVE-2017-6308, CVE-2017-6309, CVE-2017-6310
SHA-256 | bbd49c0c46d64d21fabc7c7b1c12d055760af924afd1df74cdd1ccbfd5bfaaf6

Debian Security Advisory 3798-1

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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- -------------------------------------------------------------------------
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
- -------------------------------------------------------------------------

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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