A libexif security update has been released for Debian GNU/Linux 10 to address an issue where a boundary check in libexif could result in a potential buffer overflow.

DSA 4786-1: libexif security update

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Debian Security Advisory DSA-4786-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
November 08, 2020   https://www.debian.org/security/faq
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Package : libexif
CVE ID : CVE-2020-0452

It was discovered that a boundary check in libexif, a library to parse
EXIF files, could be optimised away by the compiler, resulting in
a potential buffer overflow.

For the stable distribution (buster), this problem has been fixed in
version 0.6.21-5.1+deb10u5.

We recommend that you upgrade your libexif packages.

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

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/