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Ubuntu Security Notice USN-3902-2

Ubuntu Security Notice USN-3902-2
Posted Mar 12, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3902-2 - USN-3902-1 fixed a vulnerability in PHP. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that the PHP XML-RPC module incorrectly handled decoding XML data. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, php
systems | linux, ubuntu
advisories | CVE-2019-9020, CVE-2019-9021, CVE-2019-9023, CVE-2019-9024
SHA-256 | 8c5cc0af99e03f737cb519150962c02823fb921e860b9c2988049030499ed991

Ubuntu Security Notice USN-3902-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3902-2
March 12, 2019

php5 vulnerabilities
==========================================================================

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

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in PHP.

Software Description:
- php5: HTML-embedded scripting language interpreter

Details:

USN-3902-1 fixed a vulnerability in PHP. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that the PHP XML-RPC module incorrectly handled
decoding XML data. A remote attacker could possibly use this issue to
cause PHP to crash, resulting in a denial of service. (CVE-2019-9020,
CVE-2019-9024)

It was discovered that the PHP PHAR module incorrectly handled certain
filenames. A remote attacker could possibly use this issue to cause
PHP to crash, resulting in a denial of service. (CVE-2019-9021)

It was discovered that PHP incorrectly handled mbstring regular
expressions. A remote attacker could possibly use this issue to cause
PHP to crash, resulting in a denial of service. (CVE-2019-9023)

Update instructions:

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

Ubuntu 12.04 ESM:
libapache2-mod-php5 5.3.10-1ubuntu3.33
php5-cgi 5.3.10-1ubuntu3.33
php5-cli 5.3.10-1ubuntu3.33
php5-fpm 5.3.10-1ubuntu3.33
php5-xmlrpc 5.3.10-1ubuntu3.33

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

References:
https://usn.ubuntu.com/usn/usn-3902-2
https://usn.ubuntu.com/usn/usn-3902-1
CVE-2019-9020, CVE-2019-9021, CVE-2019-9023, CVE-2019-9024
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