php7.4 vulnerabilities

6 May 2020

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