[SECURITY] [DLA 839-1] tnef security update

Package : tnef
Version : 1.4.9-1+deb7u1
CVE ID : CVE-2017-6307 CVE-2017-6308 CVE-2017-6309 CVE-2017-6310

CVE-2017-6307
An issue was discovered in tnef before 1.4.13. Two OOB Writes have
been identified in src/mapi_attr.c:mapi_attr_read(). These might
lead to invalid read and write operations, controlled by an attacker.

CVE-2017-6308
An issue was discovered in tnef before 1.4.13. Several Integer
Overflows, which can lead to Heap Overflows, have been identified
in the functions that wrap memory allocation.

CVE-2017-6309
An issue was discovered in tnef before 1.4.13. Two type confusions
have been identified in the parse_file() function. These might lead
to invalid read and write operations, controlled by an attacker.

CVE-2017-6310
An issue was discovered in tnef before 1.4.13. Four type confusions
have been identified in the file_add_mapi_attrs() function.
These might lead to invalid read and write operations, controlled
by an attacker.

For Debian 7 "Wheezy", these problems have been fixed in version
1.4.9-1+deb7u1.

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