Multiple security issues were found in PHP, a widely-used open source general purpose scripting language which could result in information disclosure, denial of service or incorrect validation of path names.
For the stable distribution (buster), these problems have been fixed in version 7.3.14-1~deb10u1.
php7.3 패키지를 업그레이드 하는 게 좋음.
php7.3 자세한 보안 상태는 보안 추적 페이지 참조: \ https://security-tracker.debian.org/tracker/php7.3