CVE-2016-6295 (GCVE-0-2016-6295)

Vulnerability from cvelistv5 – Published: 2016-07-25 14:00 – Updated: 2024-08-06 01:22
VLAI
Summary
ext/snmp/snmp.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via crafted serialized data, a related issue to CVE-2016-5773.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2309 records in the last 180 days details
References
URL Tags
https://bugs.php.net/72479 x_refsource_CONFIRM
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
https://security.gentoo.org/glsa/201611-22 vendor-advisoryx_refsource_GENTOO
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=… x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2750.html vendor-advisoryx_refsource_REDHAT
http://php.net/ChangeLog-5.php x_refsource_CONFIRM
http://www.securityfocus.com/bid/92094 vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1036430 vdb-entryx_refsource_SECTRACK
http://www.debian.org/security/2016/dsa-3631 vendor-advisoryx_refsource_DEBIAN
http://php.net/ChangeLog-7.php x_refsource_CONFIRM
http://openwall.com/lists/oss-security/2016/07/24/2 mailing-listx_refsource_MLIST
https://support.apple.com/HT207170 x_refsource_CONFIRM
Date Public
2016-07-21 00:00
Show details on NVD website
To clipboard 

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                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "ext/snmp/snmp.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via crafted serialized data, a related issue to CVE-2016-5773."
          },
          {
            "lang": "es",
            "value": "ext/snmp/snmp.c en PHP en versiones anteriores a 5.5.38, 5.6.x en versiones anteriores a 5.6.24 y 7.x en versiones anteriores a 7.0.9 no interact\u00faa correctamente con la implementaci\u00f3n no serializada y la recolecci\u00f3n de basura, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (uso despu\u00e9s de liberaci\u00f3n y ca\u00edda de aplicaci\u00f3n) o posiblemente tener otro impacto no especificado a trav\u00e9s de datos serializados, un problema relacionado con CVE-2016-5773."
          }
        ],
        "id": "CVE-2016-6295",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": true,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 7.5,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 6.4,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-07-25T14:59:08.670",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=cab1c3b3708eead315e033359d07049b23b147a3"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "http://openwall.com/lists/oss-security/2016/07/24/2"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Release Notes"
            ],
            "url": "http://php.net/ChangeLog-5.php"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Release Notes"
            ],
            "url": "http://php.net/ChangeLog-7.php"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://rhn.redhat.com/errata/RHSA-2016-2750.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.debian.org/security/2016/dsa-3631"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/92094"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securitytracker.com/id/1036430"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Exploit",
              "Issue Tracking",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://bugs.php.net/72479"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://security.gentoo.org/glsa/201611-22"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://support.apple.com/HT207170"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=cab1c3b3708eead315e033359d07049b23b147a3"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "http://openwall.com/lists/oss-security/2016/07/24/2"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes"
            ],
            "url": "http://php.net/ChangeLog-5.php"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes"
            ],
            "url": "http://php.net/ChangeLog-7.php"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://rhn.redhat.com/errata/RHSA-2016-2750.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.debian.org/security/2016/dsa-3631"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/92094"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securitytracker.com/id/1036430"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Issue Tracking",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://bugs.php.net/72479"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://security.gentoo.org/glsa/201611-22"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.apple.com/HT207170"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T06:48:08+00:00",
      "cve": "CVE-2016-6295",
      "id": "CVE-2016-6295",
      "initial_release_date": "2016-06-23T00:00:00+00:00",
      "product_status:fixed": "251",
      "product_status:known_affected": "80",
      "product_status:known_not_affected": "30",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "php: Use after free in SNMP with GC and unserialize()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-6295.json",
      "version": "3"
    }
  }
}



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