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Debian DLA-341-1 : php5 security update

critical Nessus Plugin ID 86794

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Synopsis

The remote Debian host is missing a security update.

Description

- CVE-2015-6831 Use after free vulnerability was found in unserialize() function. We can create ZVAL and free it via Serializable::unserialize. However the unserialize() will still allow to use R: or r: to set references to that already freed memory. It is possible to use-after-free attack and execute arbitrary code remotely.

 - CVE-2015-6832 Dangling pointer in the unserialization of ArrayObject items.

 - CVE-2015-6833 Files extracted from archive may be placed outside of destination directory

 - CVE-2015-6834 Use after free vulnerability was found in unserialize() function. We can create ZVAL and free it via Serializable::unserialize. However the unserialize() will still allow to use R: or r: to set references to that already freed memory. It is possible to use-after-free attack and execute arbitrary code remotely.

 - CVE-2015-6836 A type confusion occurs within SOAP serialize_function_call due to an insufficient validation of the headers field. In the SoapClient's
 __call method, the verify_soap_headers_array check is applied only to headers retrieved from zend_parse_parameters; problem is that a few lines later, soap_headers could be updated or even replaced with values from the __default_headers object fields.

 - CVE-2015-6837 The XSLTProcessor class misses a few checks on the input from the libxslt library. The valuePop() function call is able to return NULL pointer and php does not check that.

 - CVE-2015-6838 The XSLTProcessor class misses a few checks on the input from the libxslt library. The valuePop() function call is able to return NULL pointer and php does not check that.

 - CVE-2015-7803 A NULL pointer dereference flaw was found in the way PHP's Phar extension parsed Phar archives. A specially crafted archive could cause PHP to crash.

 - CVE-2015-7804 An uninitialized pointer use flaw was found in the phar_make_dirstream() function of PHP's Phar extension. A specially crafted phar file in the ZIP format with a directory entry with a file name '/ZIP' could cause a PHP application function to crash.

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.

See Also

https://lists.debian.org/debian-lts-announce/2015/11/msg00002.html

https://packages.debian.org/source/squeeze-lts/php5

Plugin Details

Severity: Critical

ID: 86794

File Name: debian_DLA-341.nasl

Version: 2.12

Type: local

Agent: unix

Published: 11/9/2015

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libapache2-mod-php5, p-cpe:/a:debian:debian_linux:libapache2-mod-php5filter, p-cpe:/a:debian:debian_linux:php-pear, p-cpe:/a:debian:debian_linux:php5, p-cpe:/a:debian:debian_linux:php5-cgi, p-cpe:/a:debian:debian_linux:php5-cli, p-cpe:/a:debian:debian_linux:php5-common, p-cpe:/a:debian:debian_linux:php5-curl, p-cpe:/a:debian:debian_linux:php5-dbg, p-cpe:/a:debian:debian_linux:php5-dev, p-cpe:/a:debian:debian_linux:php5-enchant, p-cpe:/a:debian:debian_linux:php5-gd, p-cpe:/a:debian:debian_linux:php5-gmp, p-cpe:/a:debian:debian_linux:php5-imap, p-cpe:/a:debian:debian_linux:php5-interbase, p-cpe:/a:debian:debian_linux:php5-intl, p-cpe:/a:debian:debian_linux:php5-ldap, p-cpe:/a:debian:debian_linux:php5-mcrypt, p-cpe:/a:debian:debian_linux:php5-mysql, p-cpe:/a:debian:debian_linux:php5-odbc, p-cpe:/a:debian:debian_linux:php5-pgsql, p-cpe:/a:debian:debian_linux:php5-pspell, p-cpe:/a:debian:debian_linux:php5-recode, p-cpe:/a:debian:debian_linux:php5-snmp, p-cpe:/a:debian:debian_linux:php5-sqlite, p-cpe:/a:debian:debian_linux:php5-sybase, p-cpe:/a:debian:debian_linux:php5-tidy, p-cpe:/a:debian:debian_linux:php5-xmlrpc, p-cpe:/a:debian:debian_linux:php5-xsl, cpe:/o:debian:debian_linux:6.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/8/2015

Reference Information

CVE: CVE-2015-6831, CVE-2015-6832, CVE-2015-6833, CVE-2015-6834, CVE-2015-6836, CVE-2015-6837, CVE-2015-6838, CVE-2015-7803, CVE-2015-7804