UBUNTU-CVE-2016-4538

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Source
https://ubuntu.com/security/CVE-2016-4538
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4538.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2016-4538
Upstream
Downstream
Related
Published
2016-05-06T00:00:00Z
Modified
2025-09-08T16:43:45Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The bcpowmod function in ext/bcmath/bcmath.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 modifies certain data structures without considering whether they are copies of the zero, one, or two global variable, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted call.

References

Affected packages

Ubuntu:14.04:LTS / php5

Package

Name
php5
Purl
pkg:deb/ubuntu/php5@5.5.9+dfsg-1ubuntu4.17?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.5.9+dfsg-1ubuntu4.17

Affected versions

5.*

5.5.3+dfsg-1ubuntu2
5.5.3+dfsg-1ubuntu3
5.5.6+dfsg-1ubuntu1
5.5.6+dfsg-1ubuntu2
5.5.8+dfsg-2ubuntu1
5.5.9+dfsg-1ubuntu1
5.5.9+dfsg-1ubuntu2
5.5.9+dfsg-1ubuntu3
5.5.9+dfsg-1ubuntu4
5.5.9+dfsg-1ubuntu4.1
5.5.9+dfsg-1ubuntu4.2
5.5.9+dfsg-1ubuntu4.3
5.5.9+dfsg-1ubuntu4.4
5.5.9+dfsg-1ubuntu4.5
5.5.9+dfsg-1ubuntu4.6
5.5.9+dfsg-1ubuntu4.7
5.5.9+dfsg-1ubuntu4.9
5.5.9+dfsg-1ubuntu4.11
5.5.9+dfsg-1ubuntu4.12
5.5.9+dfsg-1ubuntu4.13
5.5.9+dfsg-1ubuntu4.14
5.5.9+dfsg-1ubuntu4.16

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "libapache2-mod-php5"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "libapache2-mod-php5filter"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "libphp5-embed"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php-pear"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-cgi"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-cli"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-common"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-curl"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-dev"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-enchant"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-fpm"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-gd"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-gmp"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-intl"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-ldap"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-mysql"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-mysqlnd"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-odbc"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-pgsql"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-pspell"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-readline"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-recode"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-snmp"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-sqlite"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-sybase"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-tidy"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-xmlrpc"
        },
        {
            "binary_version": "5.5.9+dfsg-1ubuntu4.17",
            "binary_name": "php5-xsl"
        }
    ]
}

Ubuntu:16.04:LTS / php7.0

Package

Name
php7.0
Purl
pkg:deb/ubuntu/php7.0@7.0.4-7ubuntu2.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.0.4-7ubuntu2.1

Affected versions

7.*

7.0.1-5
7.0.1-6
7.0.2-1
7.0.2-3
7.0.2-4
7.0.2-5
7.0.3-2
7.0.3-3
7.0.3-9ubuntu1
7.0.4-5ubuntu1
7.0.4-5ubuntu2
7.0.4-7ubuntu1
7.0.4-7ubuntu2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "libapache2-mod-php7.0"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "libphp7.0-embed"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-bcmath"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-bz2"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-cgi"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-cli"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-common"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-curl"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-dev"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-enchant"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-fpm"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-gd"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-gmp"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-imap"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-interbase"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-intl"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-json"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-ldap"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-mbstring"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-mcrypt"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-mysql"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-odbc"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-opcache"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-pgsql"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-phpdbg"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-pspell"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-readline"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-recode"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-snmp"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-soap"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-sqlite3"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-sybase"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-tidy"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-xml"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-xmlrpc"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-xsl"
        },
        {
            "binary_version": "7.0.4-7ubuntu2.1",
            "binary_name": "php7.0-zip"
        }
    ]
}