A php7.4 security update has been released for Debian GNU/Linux 11 to address multiple security issues.

DSA 5277-1: php7.4 security update

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Debian Security Advisory DSA-5277-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
November 13, 2022   https://www.debian.org/security/faq
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Package : php7.4
CVE ID : CVE-2022-31630 CVE-2022-37454 CVE-2022-31629 CVE-2022-31628

Multiple security issues were discovered in PHP, a widely-used open
source general purpose scripting language which could result an denial
of service, information disclosure, insecure cooking handling or
potentially the execution of arbitrary code.

For the stable distribution (bullseye), these problems have been fixed in
version 7.4.33-1+deb11u1.

We recommend that you upgrade your php7.4 packages.

For the detailed security status of php7.4 please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/php7.4

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/