An aspell security update has been released for Debian GNU/Linux 10 to address a buffer overflow.

DSA 4948-1: aspell security update

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Debian Security Advisory DSA-4948-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
August 01, 2021   https://www.debian.org/security/faq
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Package : aspell
CVE ID : CVE-2019-17544 CVE-2019-25051
Debian Bug : 991307

A buffer overflow was discovered in the Aspell spell checker, which could
result in the execution of arbitrary code.

For the stable distribution (buster), these problems have been fixed in
version 0.60.7~20110707-6+deb10u1.

We recommend that you upgrade your aspell packages.

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

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/