Ubuntu: USN-4618-2 Important: libarchive Security Vulnerability Addressed

A use-after-free was found in libarchive, a multi-format archive and
compression library, which could result in denial of service and
potentially the execution of arbitrary code is a malformed archive
is processed.

For the oldstable distribution (stretch), this problem has been fixed
in version 3.2.2-2+deb9u2.

For the stable distribution (buster), this problem has been fixed in
version 3.3.3-4+deb10u1.

We recommend that you upgrade your libarchive packages.

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

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/