A botan1.10 security update has been released for Debian GNU/Linux 9 LTS.

DLA 2812-1: botan1.10 security update

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Debian LTS Advisory DLA-2812-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Anton Gladky
November 08, 2021   https://wiki.debian.org/LTS
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Package : botan1.10
Version : 1.10.17-1+deb9u1
CVE ID : CVE-2017-14737

One security issue has been discovered in botan1.10: a C++ cryptography
library.

An attacker of a local or a cross-VM may be able to recover bits of
secret exponents as used in RSA, DH, etc. with help of cache analysis.
  https://www.usenix.org/conference/usenixsecurity17/technical-sessions/presentation/wang-shuai

For Debian 9 stretch, this problem has been fixed in version
1.10.17-1+deb9u1.

We recommend that you upgrade your botan1.10 packages.

For the detailed security status of botan1.10 please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/botan1.10

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