ubuntu-cve-2015-9253
Vulnerability from osv_ubuntu
Published
2018-02-19 00:00
Modified
2026-04-22 07:37
Summary
Details

An issue was discovered in PHP 7.3.x before 7.3.0alpha3, 7.2.x before 7.2.8, and before 7.1.20. The php-fpm master process restarts a child process in an endless loop when using program execution functions (e.g., passthru, exec, shell_exec, or system) with a non-blocking STDIN stream, causing this master process to consume 100% of the CPU, and consume disk space with a large volume of error logs, as demonstrated by an attack by a customer of a shared-hosting facility.

Severity
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
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          },
          {
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          },
          {
            "binary_name": "php-pear",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-cgi",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-cli",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-common",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-curl",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-enchant",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-fpm",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-gd",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-gmp",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-intl",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-ldap",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-mysql",
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          {
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          },
          {
            "binary_name": "php5-odbc",
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          },
          {
            "binary_name": "php5-pgsql",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-pspell",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-readline",
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          },
          {
            "binary_name": "php5-recode",
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          },
          {
            "binary_name": "php5-snmp",
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          },
          {
            "binary_name": "php5-sqlite",
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          },
          {
            "binary_name": "php5-sybase",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-tidy",
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          },
          {
            "binary_name": "php5-xmlrpc",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          },
          {
            "binary_name": "php5-xsl",
            "binary_version": "5.5.9+dfsg-1ubuntu4.29+esm10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "php5",
        "purl": "pkg:deb/ubuntu/php5@5.5.9+dfsg-1ubuntu4.29+esm10?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            {
              "fixed": "5.5.9+dfsg-1ubuntu4.29+esm10"
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        "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",
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        "5.5.9+dfsg-1ubuntu4.13",
        "5.5.9+dfsg-1ubuntu4.14",
        "5.5.9+dfsg-1ubuntu4.16",
        "5.5.9+dfsg-1ubuntu4.17",
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        "5.5.9+dfsg-1ubuntu4.20",
        "5.5.9+dfsg-1ubuntu4.21",
        "5.5.9+dfsg-1ubuntu4.22",
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    {
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          {
            "binary_name": "php7.0",
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            "binary_name": "php7.0-bcmath",
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          {
            "binary_name": "php7.0-bz2",
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          {
            "binary_name": "php7.0-cgi",
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          {
            "binary_name": "php7.0-cli",
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          },
          {
            "binary_name": "php7.0-common",
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          {
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          {
            "binary_name": "php7.0-dba",
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          {
            "binary_name": "php7.0-enchant",
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          {
            "binary_name": "php7.0-gd",
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          {
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            "binary_name": "php7.0-mcrypt",
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          {
            "binary_name": "php7.0-mysql",
            "binary_version": "7.0.33-0ubuntu0.16.04.16+esm3"
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          {
            "binary_name": "php7.0-odbc",
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          {
            "binary_name": "php7.0-opcache",
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          {
            "binary_name": "php7.0-pgsql",
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          },
          {
            "binary_name": "php7.0-phpdbg",
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          },
          {
            "binary_name": "php7.0-pspell",
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          },
          {
            "binary_name": "php7.0-readline",
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          },
          {
            "binary_name": "php7.0-recode",
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          {
            "binary_name": "php7.0-snmp",
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          },
          {
            "binary_name": "php7.0-soap",
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          },
          {
            "binary_name": "php7.0-sqlite3",
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          {
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        "7.0.3-2",
        "7.0.3-3",
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        "7.0.4-5ubuntu1",
        "7.0.4-5ubuntu2",
        "7.0.4-7ubuntu1",
        "7.0.4-7ubuntu2",
        "7.0.4-7ubuntu2.1",
        "7.0.8-0ubuntu0.16.04.1",
        "7.0.8-0ubuntu0.16.04.2",
        "7.0.8-0ubuntu0.16.04.3",
        "7.0.13-0ubuntu0.16.04.1",
        "7.0.15-0ubuntu0.16.04.1",
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        "7.0.15-0ubuntu0.16.04.4",
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        "7.0.32-0ubuntu0.16.04.1",
        "7.0.33-0ubuntu0.16.04.1",
        "7.0.33-0ubuntu0.16.04.2",
        "7.0.33-0ubuntu0.16.04.3",
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        "7.0.33-0ubuntu0.16.04.16+esm2"
      ]
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    {
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          {
            "binary_name": "php7.2-curl",
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          },
          {
            "binary_name": "php7.2-dba",
            "binary_version": "7.2.10-0ubuntu0.18.04.1"
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            "binary_name": "php7.2-enchant",
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            "binary_name": "php7.2-fpm",
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          {
            "binary_name": "php7.2-gd",
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            "binary_name": "php7.2-gmp",
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          {
            "binary_name": "php7.2-imap",
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          {
            "binary_name": "php7.2-interbase",
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          {
            "binary_name": "php7.2-intl",
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          {
            "binary_name": "php7.2-json",
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          {
            "binary_name": "php7.2-ldap",
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          },
          {
            "binary_name": "php7.2-mbstring",
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          },
          {
            "binary_name": "php7.2-mysql",
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          {
            "binary_name": "php7.2-odbc",
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            "binary_name": "php7.2-opcache",
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            "binary_name": "php7.2-pgsql",
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            "binary_name": "php7.2-phpdbg",
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            "binary_name": "php7.2-pspell",
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          {
            "binary_name": "php7.2-readline",
            "binary_version": "7.2.10-0ubuntu0.18.04.1"
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            "binary_name": "php7.2-soap",
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            "binary_name": "php7.2-sqlite3",
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          },
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            "binary_name": "php7.2-sybase",
            "binary_version": "7.2.10-0ubuntu0.18.04.1"
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            "binary_name": "php7.2-tidy",
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            "binary_name": "php7.2-xmlrpc",
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          {
            "binary_name": "php7.2-xsl",
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          {
            "binary_name": "php7.2-zip",
            "binary_version": "7.2.10-0ubuntu0.18.04.1"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "php7.2",
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        "7.2.2-1ubuntu1",
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        "7.2.7-0ubuntu0.18.04.1",
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  ],
  "aliases": [],
  "details": "An issue was discovered in PHP 7.3.x before 7.3.0alpha3, 7.2.x before 7.2.8, and before 7.1.20. The php-fpm master process restarts a child process in an endless loop when using program execution functions (e.g., passthru, exec, shell_exec, or system) with a non-blocking STDIN stream, causing this master process to consume 100% of the CPU, and consume disk space with a large volume of error logs, as demonstrated by an attack by a customer of a shared-hosting facility.",
  "id": "UBUNTU-CVE-2015-9253",
  "modified": "2026-04-22T07:37:53Z",
  "published": "2018-02-19T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-9253"
    },
    {
      "type": "REPORT",
      "url": "https://www.futureweb.at/Futureweb-OG-php-fpm-master-process-restarts-child-process-in-a_pid,54177,type,firmeninfo.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3766-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4279-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4279-2"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5300-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2015-9253"
    }
  ],
  "related": [
    "USN-3766-1",
    "USN-4279-1",
    "USN-4279-2",
    "USN-5300-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2015-9253"
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.