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Ubuntu Security Notice USN-4330-1
April 15, 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

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

References:
  https://usn.ubuntu.com/4330-1
  CVE-2020-7062, CVE-2020-7063, CVE-2020-7064, CVE-2020-7065,
  CVE-2020-7066

Package Information:
  https://launchpad.net/ubuntu/+source/php7.3/7.3.11-0ubuntu0.19.10.4
  https://launchpad.net/ubuntu/+source/php7.2/7.2.24-0ubuntu0.18.04.4
  https://launchpad.net/ubuntu/+source/php7.0/7.0.33-0ubuntu0.16.04.14