php5, php7.0, php7.2, php7.3 vulnerabilities

15 April 2020

php5, php7.0, php7.2, php7.3 vulnerabilities

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

• Ubuntu 19.10
• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS
• Ubuntu 14.04 ESM
• Ubuntu 12.04 ESM

Summary

Several security issues were fixed in PHP.

Software Description

• php7.3 - server-side, HTML-embedded scripting language (metapackage)
• php7.2 - HTML-embedded scripting language interpreter
• php7.0 - HTML-embedded scripting language interpreter
• php5 - HTML-embedded scripting language interpreter

Details

It was discovered that PHP incorrectly handled certain file uploads. An attacker could possibly use this issue to cause a crash. (CVE-2020-7062)

It was discovered that PHP incorrectly handled certain PHAR archive files. An attacker could possibly use this issue to access sensitive information. (CVE-2020-7063)

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. This issue only affected Ubuntu 19.10. (CVE-2020-7065)

It was discovered that PHP incorrectly handled certain URLs. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 19.10. (CVE-2020-7066)

Update instructions

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

Ubuntu 19.10

libapache2-mod-php7.3 - 7.3.11-0ubuntu0.19.10.4

php7.3-cgi - 7.3.11-0ubuntu0.19.10.4

php7.3-cli - 7.3.11-0ubuntu0.19.10.4

php7.3-fpm - 7.3.11-0ubuntu0.19.10.4

php7.3-mbstring - 7.3.11-0ubuntu0.19.10.4

Ubuntu 18.04 LTS

libapache2-mod-php7.2 - 7.2.24-0ubuntu0.18.04.4

php7.2 - 7.2.24-0ubuntu0.18.04.4

php7.2-cgi - 7.2.24-0ubuntu0.18.04.4

php7.2-cli - 7.2.24-0ubuntu0.18.04.4

php7.2-fpm - 7.2.24-0ubuntu0.18.04.4

Ubuntu 16.04 LTS

libapache2-mod-php7.0 - 7.0.33-0ubuntu0.16.04.14

php7.0-cgi - 7.0.33-0ubuntu0.16.04.14

php7.0-cli - 7.0.33-0ubuntu0.16.04.14

php7.0-fpm - 7.0.33-0ubuntu0.16.04.14

Ubuntu 14.04 ESM

libapache2-mod-php5 - 5.5.9+dfsg-1ubuntu4.29+esm11

php5-cgi - 5.5.9+dfsg-1ubuntu4.29+esm11

php5-cli - 5.5.9+dfsg-1ubuntu4.29+esm11

php5-fpm - 5.5.9+dfsg-1ubuntu4.29+esm11

Ubuntu 12.04 ESM

libapache2-mod-php5 - 5.3.10-1ubuntu3.45

php5-cgi - 5.3.10-1ubuntu3.45

php5-cli - 5.3.10-1ubuntu3.45

php5-fpm - 5.3.10-1ubuntu3.45

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

• CVE-2020-7062
• CVE-2020-7063
• CVE-2020-7064
• CVE-2020-7065
• CVE-2020-7066