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Ubuntu Security Notice USN-4583-1

Ubuntu Security Notice USN-4583-1
Posted Oct 14, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4583-1 - It was discovered that PHP incorrectly handled certain encrypt ciphers. An attacker could possibly use this issue to decrease security or cause incorrect encryption data. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. It was discovered that PHP incorrectly handled certain HTTP cookies. An attacker could possibly use this issue to forge cookie which is supposed to be secure. Various other issues were also addressed.

tags | advisory, web, php
systems | linux, ubuntu
advisories | CVE-2020-7069, CVE-2020-7070
MD5 | 12cf9b32480b82e7ad683d2a4b2e6274

Ubuntu Security Notice USN-4583-1

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-4583-1
October 14, 2020

php5, php7.0, php7.2, php7.4 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- 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:
- php7.4: 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 encrypt ciphers.
An attacker could possibly use this issue to decrease security or cause
incorrect encryption data. This issue only affected Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS. (CVE-2020-7069)

It was discorevered that PHP incorrectly handled certain HTTP cookies.
An attacker could possibly use this issue to forge cookie which is supposed to
be secure. (CVE-2020-7070)

Update instructions:

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

Ubuntu 20.04 LTS:
libapache2-mod-php7.4 7.4.3-4ubuntu2.4
php7.4-cgi 7.4.3-4ubuntu2.4
php7.4-cli 7.4.3-4ubuntu2.4
php7.4-curl 7.4.3-4ubuntu2.4
php7.4-fpm 7.4.3-4ubuntu2.4

Ubuntu 18.04 LTS:
libapache2-mod-php7.2 7.2.24-0ubuntu0.18.04.7
php7.2-cgi 7.2.24-0ubuntu0.18.04.7
php7.2-cli 7.2.24-0ubuntu0.18.04.7
php7.2-curl 7.2.24-0ubuntu0.18.04.7
php7.2-fpm 7.2.24-0ubuntu0.18.04.7

Ubuntu 16.04 LTS:
libapache2-mod-php7.0 7.0.33-0ubuntu0.16.04.16
php7.0-cgi 7.0.33-0ubuntu0.16.04.16
php7.0-cli 7.0.33-0ubuntu0.16.04.16
php7.0-curl 7.0.33-0ubuntu0.16.04.16
php7.0-fpm 7.0.33-0ubuntu0.16.04.16

Ubuntu 14.04 ESM:
libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.29+esm13
php5-cgi 5.5.9+dfsg-1ubuntu4.29+esm13
php5-cli 5.5.9+dfsg-1ubuntu4.29+esm13
php5-curl 5.5.9+dfsg-1ubuntu4.29+esm13
php5-fpm 5.5.9+dfsg-1ubuntu4.29+esm13

Ubuntu 12.04 ESM:
libapache2-mod-php5 5.3.10-1ubuntu3.48
php5-cgi 5.3.10-1ubuntu3.48
php5-cli 5.3.10-1ubuntu3.48
php5-curl 5.3.10-1ubuntu3.48
php5-fpm 5.3.10-1ubuntu3.48

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

References:
https://usn.ubuntu.com/4583-1
CVE-2020-7069, CVE-2020-7070

Package Information:
https://launchpad.net/ubuntu/+source/php7.4/7.4.3-4ubuntu2.4
https://launchpad.net/ubuntu/+source/php7.2/7.2.24-0ubuntu0.18.04.7
https://launchpad.net/ubuntu/+source/php7.0/7.0.33-0ubuntu0.16.04.16
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