CVE-2015-6835
Critical · 9.8CVSS
9.8
EPSS
36.2%
Published
May 16, 2016
CISA due date
—
The record
The session deserializer in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 mishandles multiple php_var_unserialize calls, which allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via crafted session content.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Debian:7 | php5 | 0 | 5.4.45-0+deb7u1 |
| Debian:8 | php5 | 0 | 5.6.13+dfsg-0+deb8u1 |
| Mageia:4 | php | 0 | 5.5.29-1.mga4 |
| Mageia:4 | php-apc | 0 | 3.1.15-4.19.mga4 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-bcmath | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-cli | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-common | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-dba | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-dbg | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-debuginfo | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-devel | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-embedded | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-enchant | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-fpm | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-gd | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-gmp | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-imap | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-intl | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-ldap | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-mbstring | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-mysqlnd | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-odbc | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-opcache | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-pdo | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-pgsql | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-process | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-pspell | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-recode | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-snmp | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-soap | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-tidy | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-xml | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el6 | rh-php56-php-xmlrpc | 0 | 0:5.6.5-8.el6 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-bcmath | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-cli | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-common | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-dba | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-dbg | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-debuginfo | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-devel | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-embedded | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-enchant | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-fpm | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-gd | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-gmp | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-intl | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-ldap | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-mbstring | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-mysqlnd | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-odbc | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-opcache | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-pdo | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-pgsql | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-process | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-pspell | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-recode | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-snmp | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-soap | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-xml | 0 | 0:5.6.5-8.el7 |
| Red Hat:rhel_software_collections:2::el7 | rh-php56-php-xmlrpc | 0 | 0:5.6.5-8.el7 |
| SUSE:Linux Enterprise Module for Web and Scripting 12 | php5 | 0 | 5.5.14-36.1 |
| SUSE:Linux Enterprise Software Development Kit 12 | php5 | 0 | 5.5.14-36.1 |
| Ubuntu:14.04:LTS | php5 | 0 | 5.5.9+dfsg-1ubuntu4.13 |
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