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Ubuntu 16.04 ESM USN-5300-1 Critical: PHP Denial Of Service Flaws

ubuntu
Calendar Grey February 22, 2022
Dist Ubuntu Esm H88
Multiple security issues were fixed for PHP on Ubuntu 16.04, improving stability and safety against exploits.
Several security issues were fixed in PHP.

Summary

Several security issues were fixed in PHP.

Software Description:

- php7.0: HTML-embedded scripting language interpreter

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 denial of service software update Ubuntu PHP

Update Instructions

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

Ubuntu 16.04 ESM:
   php7.0-cgi                      7.0.33-0ubuntu0.16.04.16+esm3
   php7.0-cli                      7.0.33-0ubuntu0.16.04.16+esm3
   php7.0-fpm                      7.0.33-0ubuntu0.16.04.16+esm3

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

References

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

CVE-2015-9253, CVE-2017-8923, CVE-2017-9118, CVE-2017-9119,

CVE-2017-9120, CVE-2021-21707

Severity
critical
Lowest
Low
Medium
High
Critical

February 22, 2022

Topics%20covered

Topics Covered

security advisory denial of service software update Ubuntu PHP

Package Information

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