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Debian Security Advisory DSA-4992-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
October 25, 2021                      https://www.debian.org/security/faq
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Package        : php7.4
CVE ID         : CVE-2021-21703
Debian Bug     : 997003

An out-of-bounds read and write flaw was discovered in the PHP-FPM code,
which could result in escalation of privileges from local unprivileged
user to the root user.

For the stable distribution (bullseye), this problem has been fixed in
version 7.4.25-1+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/source-package/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/

Mailing list: debian-security-announce@lists.debian.org

Debian: DSA-4992-1: php7.4 security update

October 25, 2021
An out-of-bounds read and write flaw was discovered in the PHP-FPM code, which could result in escalation of privileges from local unprivileged user to the root user

Summary

For the stable distribution (bullseye), this problem has been fixed in
version 7.4.25-1+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/source-package/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/

Mailing list: debian-security-announce@lists.debian.org

Severity
An out-of-bounds read and write flaw was discovered in the PHP-FPM code,
which could result in escalation of privileges from local unprivileged
user to the root user.

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