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Ubuntu 21.10: USN-5300-3 Moderate PHP Denial Of Service Vulnerability

ubuntu
Calendar Grey March 7, 2022
Dist Ubuntu Esm H88
Corrections for PHP security flaws tackled in Ubuntu 21.10, alongside security advisories issued for March 2022.
Several security issues were fixed in PHP.

Summary

Several security issues were fixed in PHP.

Software Description:

- php8.0: HTML-embedded scripting language interpreter

Details:

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

corresponding updates for Ubuntu 21.10.

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 denial of service software update Ubuntu PHP

Update Instructions

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

Ubuntu 21.10:
  php8.0-cgi                      8.0.8-1ubuntu0.3
  php8.0-cli                      8.0.8-1ubuntu0.3
  php8.0-fpm                      8.0.8-1ubuntu0.3

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

References

https://ubuntu.com/security/notices/USN-5300-3

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

CVE-2017-8923, CVE-2017-9118, CVE-2017-9120, CVE-2021-21707

March 07, 2022

Topics%20covered

Topics Covered

security advisory denial of service software update Ubuntu PHP

Package Information

https://launchpad.net/ubuntu/+source/php8.0/8.0.8-1ubuntu0.3

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