Debian DLA-875-1 : php5 security update

critical Nessus Plugin ID 99003

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Synopsis

The remote Debian host is missing a security update.

Description

Several issues have been discovered in PHP (recursive acronym for PHP:
Hypertext Preprocessor), a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.

CVE-2016-7478: Zend/zend_exceptions.c in PHP allows remote attackers to cause a denial of service (infinite loop) via a crafted Exception object in serialized data, a related issue to CVE-2015-8876.

CVE-2016-7479: During the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain the ability of arbitrary code execution. Even though the property table issue only affects PHP 7 this change also prevents a wide range of other __wakeup() based attacks.

CVE-2017-7272: The fsockopen() function will use the port number which is defined in hostname instead of the port number passed to the second parameter of the function. This misbehavior may introduce another attack vector for an already known application vulnerability (e.g.
Server Side Request Forgery).

For Debian 7 'Wheezy', these problems have been fixed in version 5.4.45-0+deb7u8.

We recommend that you upgrade your php5 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

Plugin Details

Severity: Critical

ID: 99003

File Name: debian_DLA-875.nasl

Version: 3.6

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 3/28/2017

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:php5, p-cpe:/a:debian:debian_linux:php5-sqlite, p-cpe:/a:debian:debian_linux:php5-intl, p-cpe:/a:debian:debian_linux:php5-dev, p-cpe:/a:debian:debian_linux:php5-dbg, p-cpe:/a:debian:debian_linux:php5-sybase, p-cpe:/a:debian:debian_linux:php5-gmp, p-cpe:/a:debian:debian_linux:php5-pspell, p-cpe:/a:debian:debian_linux:php5-curl, p-cpe:/a:debian:debian_linux:php5-recode, p-cpe:/a:debian:debian_linux:php5-snmp, p-cpe:/a:debian:debian_linux:libapache2-mod-php5filter, p-cpe:/a:debian:debian_linux:php5-mysqlnd, p-cpe:/a:debian:debian_linux:php5-enchant, p-cpe:/a:debian:debian_linux:php5-pgsql, p-cpe:/a:debian:debian_linux:php5-imap, p-cpe:/a:debian:debian_linux:php5-ldap, p-cpe:/a:debian:debian_linux:php5-common, p-cpe:/a:debian:debian_linux:php5-tidy, p-cpe:/a:debian:debian_linux:php5-odbc, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:php5-gd, p-cpe:/a:debian:debian_linux:php-pear, p-cpe:/a:debian:debian_linux:libapache2-mod-php5, p-cpe:/a:debian:debian_linux:php5-mysql, p-cpe:/a:debian:debian_linux:libphp5-embed, p-cpe:/a:debian:debian_linux:php5-xmlrpc, p-cpe:/a:debian:debian_linux:php5-cgi, p-cpe:/a:debian:debian_linux:php5-fpm, p-cpe:/a:debian:debian_linux:php5-interbase, p-cpe:/a:debian:debian_linux:php5-xsl, p-cpe:/a:debian:debian_linux:php5-cli, p-cpe:/a:debian:debian_linux:php5-mcrypt

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/27/2017

Reference Information

CVE: CVE-2016-7478, CVE-2016-7479, CVE-2017-7272

Detections

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