112
php7.4 vulnerabilities

A security issue affects these releases of Ubuntu and its
derivatives:

* Ubuntu 20.04 LTS

Summary

Several security issues were fixed in PHP.

Software Description

* php7.4 - server-side, HTML-embedded scripting language
(metapackage)

Details

USN-4330-1 fixed vulnerabilities in PHP. This update provides the
corresponding update for Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that PHP incorrectly handled certain EXIF files.
An attacker could possibly use this issue to access sensitive
information or cause a crash. (CVE-2020-7064)

It was discovered that PHP incorrectly handled certain UTF
strings. An attacker could possibly use this issue to cause a
crash or execute arbitrary code. (CVE-2020-7065)

It was discovered that PHP incorrectly handled certain URLs. An
attacker could possibly use this issue to expose sensitive
information. (CVE-2020-7066)

Update instructions

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

Ubuntu 20.04 LTS
libapache2-mod-php7.4 - 7.4.3-4ubuntu1.1
php7.4-cgi - 7.4.3-4ubuntu1.1
php7.4-cli - 7.4.3-4ubuntu1.1
php7.4-fpm - 7.4.3-4ubuntu1.1
php7.4-mbstring - 7.4.3-4ubuntu1.1

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

* USN-4330-1
* CVE-2020-7064
* CVE-2020-7065
* CVE-2020-7066

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