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Ubuntu 20.04 and 18.04 USN-5300-2 Moderate: PHP Denial of Service

ubuntu
Calendar Grey March 3, 2022
Dist Ubuntu Esm H88
A number of security flaws in PHP have been addressed for both Ubuntu 18.04 and 20.04 LTS. Ensure your safety by upgrading your software.
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

Details:

USN-5300-1 fixed vulnerabilities in PHP. This update provides the

corresponding updates for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that PHP incorrectly handled certain scripts.

An attacker could possibly use this issue to cause a denial of service.

(CVE-2015-9253, CVE-2017-8923, CVE-2017-9118, CVE-2017-9120)

It was discovered that PHP incorrectly handled certain inputs.

An attacker could possibly use this issue to cause a denial of service,

or possibly obtain sensitive information. (CVE-2017-9119)

It was discovered that PHP incorrectly handled certain scripts with XML

parsing functions.

An attacker could possibly use this issue to obtain sensitive information.

(CVE-2021-21707)

Topics%20covered

Topics Covered

security advisory security issue software update Ubuntu software fix Denial of Service PHP

Update Instructions

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

Ubuntu 20.04 LTS:
  php7.4-cgi                      7.4.3-4ubuntu2.10
  php7.4-cli                      7.4.3-4ubuntu2.10
  php7.4-fpm                      7.4.3-4ubuntu2.10

Ubuntu 18.04 LTS:
  php7.2-cgi                      7.2.24-0ubuntu0.18.04.11
  php7.2-cli                      7.2.24-0ubuntu0.18.04.11
  php7.2-fpm                      7.2.24-0ubuntu0.18.04.11

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

References

https://ubuntu.com/security/notices/USN-5300-2

https://ubuntu.com/security/notices/USN-5300-1

CVE-2017-8923, CVE-2017-9118, CVE-2017-9119, CVE-2017-9120,

CVE-2021-21707

March 03, 2022

Topics%20covered

Topics Covered

security advisory security issue software update Ubuntu software fix Denial of Service PHP

Package Information

https://launchpad.net/ubuntu/+source/php7.4/7.4.3-4ubuntu2.10
https://launchpad.net/ubuntu/+source/php7.2/7.2.24-0ubuntu0.18.04.11

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