For Debian 9 stretch, this problem has been fixed in version
1.4.11.
We recommend that you upgrade your apt packages.
For the detailed security status of apt please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/apt
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
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