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[USN-8948-2] PHP vulnerabilities

Posted on 21 October 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8948-2
October 21, 2026

php5, php7.0, php7.2, php7.4 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

PHP could be made to crash or run programs if it received specially crafted
network traffic.

Software Description:
- php7.4: HTML-embedded scripting language interpreter
- php7.2: HTML-embedded scripting language interpreter
- php7.0: HTML-embedded scripting language interpreter
- php5: HTML-embedded scripting language interpreter

Details:

USN-8948-1 fixed vulnerabilities in Ubuntu 22.04 LTS, Ubuntu 24.04 LTS,
Ubuntu 26.04 LTS and Ubuntu 26.10. This provides the corrosponding updates
in Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04
LTS.

Original advisory details:

It was discovered that PHP incorrectly handled out-of-memory conditions
while processing requests. A remote attacker could use this issue to
execute arbitrary code. (CVE-2026-109618)

It was discovered that PHP incorrectly managed internal request state
across worker reuse. A remote attacker could use this issue to execute
arbitrary code. (CVE-2026-109619)

Update instructions:

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

Ubuntu 20.04 LTS
libapache2-mod-php7.4 7.4.3-4ubuntu2.29+esm5
Available with Ubuntu Pro
php7.4 7.4.3-4ubuntu2.29+esm5
Available with Ubuntu Pro
php7.4-cgi 7.4.3-4ubuntu2.29+esm5
Available with Ubuntu Pro
php7.4-cli 7.4.3-4ubuntu2.29+esm5
Available with Ubuntu Pro
php7.4-fpm 7.4.3-4ubuntu2.29+esm5
Available with Ubuntu Pro

Ubuntu 18.04 LTS
php7.2 7.2.24-0ubuntu0.18.04.17+esm14
Available with Ubuntu Pro
php7.2-cgi 7.2.24-0ubuntu0.18.04.17+esm14
Available with Ubuntu Pro
php7.2-cli 7.2.24-0ubuntu0.18.04.17+esm14
Available with Ubuntu Pro
php7.2-fpm 7.2.24-0ubuntu0.18.04.17+esm14
Available with Ubuntu Pro

Ubuntu 16.04 LTS
libapache2-mod-php7.0 7.0.33-0ubuntu0.16.04.16+esm22
Available with Ubuntu Pro
php7.0 7.0.33-0ubuntu0.16.04.16+esm22
Available with Ubuntu Pro
php7.0-cgi 7.0.33-0ubuntu0.16.04.16+esm22
Available with Ubuntu Pro
php7.0-cli 7.0.33-0ubuntu0.16.04.16+esm22
Available with Ubuntu Pro
php7.0-fpm 7.0.33-0ubuntu0.16.04.16+esm22
Available with Ubuntu Pro

Ubuntu 14.04 LTS
libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.29+esm18
Available with Ubuntu Pro
php5 5.5.9+dfsg-1ubuntu4.29+esm18
Available with Ubuntu Pro
php5-cgi 5.5.9+dfsg-1ubuntu4.29+esm18
Available with Ubuntu Pro
php5-cli 5.5.9+dfsg-1ubuntu4.29+esm18
Available with Ubuntu Pro
php5-fpm 5.5.9+dfsg-1ubuntu4.29+esm18
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-8948-2
https://ubuntu.com/security/notices/USN-8948-1
CVE-2026-109618, CVE-2026-109619

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