For the stable distribution (jessie), this problem has been fixed in
version 2.1.0-6+deb8u2. Additionally this update refreshes the fix for
CVE-2015-1283 to avoid relying on undefined behavior.
We recommend that you upgrade your expat 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/
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