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.
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