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Ubuntu 20.04: USN-7648-2 Advisory on Critical PHP Security Issues

ubuntu
Calendar Grey August 22, 2025
Scroller Ubuntu
Recent essential PHP security patches for Ubuntu address multiple vulnerabilities, encompassing various DoS threats. Users are urged to take immediate action.
Several security issues were fixed in PHP.

Summary

Several security issues were fixed in PHP.

Software Description:

- php7.4: HTML-embedded scripting language interpreter

- php7.2: HTML-embedded scripting language interpreter

- php7.0: HTML-embedded scripting language interpreter

Details:

USN-7648-1 fixed several vulnerabilities in PHP. This update

provides the corresponding updates for Ubuntu 16.04 LTS, Ubuntu

18.04 LTS, and Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that PHP incorrectly handled certain hostnames containing

null characters. A remote attacker could possibly use this issue to bypass

certain hostname validation checks. (CVE-2025-1220)

It was discovered that PHP incorrectly handled the pgsql and pdo_pgsql

escaping functions. A remote attacker could possibly use this issue to

cause PHP to crash, resulting in a denial of service. (CVE-2025-1735)

It was discovered that PHP incorrectly handled parsing certain XML data in

SOAP extensions. A remote attacker could possibly use this issue to...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service php Ubuntu important CVE fixed

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
  php7.4                          7.4.3-4ubuntu2.29+esm1
                                  Available with Ubuntu Pro
  php7.4-cgi                      7.4.3-4ubuntu2.29+esm1
                                  Available with Ubuntu Pro
  php7.4-cli                      7.4.3-4ubuntu2.29+esm1
                                  Available with Ubuntu Pro
  php7.4-fpm                      7.4.3-4ubuntu2.29+esm1
                                  Available with Ubuntu Pro
  php7.4-pgsql                    7.4.3-4ubuntu2.29+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  php7.2                          7.2.24-0ubuntu0.18.04.17+esm9
                                  Available with Ubuntu Pro
  php7.2-cgi                      7.2.24-0ubuntu0.18.04.17+esm9
                                  Available with Ubuntu Pro
  php7.2-cli                      7.2.24-0ubuntu0.18.04.17+esm9
                                  Available with Ubuntu Pro
  php7.2-fpm                      7.2.24-0ubuntu0.18.04.17+esm9
                                  Available with Ubuntu Pro
  php7.2-pgsql                    7.2.24-0ubuntu0.18.04.17+esm9
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  php7.0                          7.0.33-0ubuntu0.16.04.16+esm16
                                  Available with Ubuntu Pro
  php7.0-cgi                      7.0.33-0ubuntu0.16.04.16+esm16
                                  Available with Ubuntu Pro
  php7.0-cli                      7.0.33-0ubuntu0.16.04.16+esm16
                                  Available with Ubuntu Pro
  php7.0-fpm                      7.0.33-0ubuntu0.16.04.16+esm16
                                  Available with Ubuntu Pro
  php7.0-pgsql                    7.0.33-0ubuntu0.16.04.16+esm16
                                  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7648-2

https://ubuntu.com/security/notices/USN-7648-1

CVE-2025-1220, CVE-2025-1735, CVE-2025-6491

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7648-2

Topics%20covered

Topics Covered

security advisory denial of service php Ubuntu important CVE fixed

Package Information

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