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CVE-2015-8838 (GCVE-0-2015-8838)

Vulnerability from cvelistv5 – Published: 2016-05-16 10:00 – Updated: 2024-08-06 08:29
VLAI
Summary
ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 uses a client SSL option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, a related issue to CVE-2015-3152.
CWE
  • n/a
References
URL Tags
http://www.ubuntu.com/usn/USN-2952-1 vendor-advisoryx_refsource_UBUNTU
https://bugs.php.net/bug.php?id=69669 x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.ubuntu.com/usn/USN-2952-2 vendor-advisoryx_refsource_UBUNTU
http://php.net/ChangeLog-5.php x_refsource_CONFIRM
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=… x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
Date Public
2015-07-21 00:00
Show details on NVD website

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                    "criteria": "cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B53DC0C3-EA19-4465-B65A-BC7CDB10D8BF",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:*",
                    "matchCriteriaId": "BEA4DFC1-6C0C-42FB-9F47-E3E1AA9E47E0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D904E21A-4B3B-4D96-850C-0C0315F14E6D",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A3E9AE25-4513-4EDA-863B-EBC4B955539D",
                    "versionEndIncluding": "5.4.42",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 uses a client SSL option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, a related issue to CVE-2015-3152."
          },
          {
            "lang": "es",
            "value": "ext/mysqlnd/mysqlnd.c en PHP en versiones anteriores a 5.4.43, 5.5.x en versiones anteriores 5.5.27 y 5.6.x en versiones anteriores a 5.6.11 usa una opci\u00f3n de cliente SSL para indicar que el SSL es opcional, lo que permite a atacantes man-in-the-middle falsificar servidores a trav\u00e9s de un ataque de degradaci\u00f3n de texto plano, un problema relacionado con la CVE-2015-3152."
          }
        ],
        "id": "CVE-2015-8838",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "confidentialityImpact": "NONE",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
                "version": "3.0"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-05-16T10:59:23.410",
        "references": [
          {
            "source": "secalert@redhat.com",
            "url": "http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=97aa752fee61fccdec361279adbfb17a3c60f3f4"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00052.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00056.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00057.html"
          },
          {
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00058.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://php.net/ChangeLog-5.php"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/USN-2952-1"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/USN-2952-2"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://bugs.php.net/bug.php?id=69669"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=97aa752fee61fccdec361279adbfb17a3c60f3f4"
          },
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          },
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          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00057.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00058.html"
          },
          {
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            "url": "http://php.net/ChangeLog-5.php"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-2952-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-2952-2"
          },
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bugs.php.net/bug.php?id=69669"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-284"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:03:57+00:00",
      "cve": "CVE-2015-8838",
      "id": "CVE-2015-8838",
      "initial_release_date": "2015-05-20T00:00:00+00:00",
      "product_status:known_affected": "86",
      "product_status:known_not_affected": "54",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "php: mysqlnd interface vulnerable to BACKRONYM",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2015/cve-2015-8838.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-08T00:29:14Z",
      "cve": "CVE-2015-8838",
      "id": "CVE-2015-8838",
      "initial_release_date": "2023-02-15T05:10:49Z",
      "product_status:known_not_affected": "2351",
      "product_status:recommended": "1020",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2015-8838",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2015-8838.json",
      "version": "11"
    }
  }
}



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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.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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