A php-pear security update has been released for Debian GNU/Linux 10 to address an issue in the PEAR Archive_Tar package.

DSA 4894-1: php-pear security update

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Debian Security Advisory DSA-4894-1 security@debian.org
  https://www.debian.org/security/ Salvatore Bonaccorso
April 20, 2021   https://www.debian.org/security/faq
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Package : php-pear
CVE ID : CVE-2020-36193
Debian Bug : 980428

It was discovered that the PEAR Archive_Tar package for handling tar
files in PHP is prone to a directory traversal flaw due to inadequate
checking of symbolic links.

For the stable distribution (buster), this problem has been fixed in
version 1:1.10.6+submodules+notgz-1.1+deb10u2.

We recommend that you upgrade your php-pear packages.

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

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/