FKIE_CVE-2019-9495

Vulnerability from fkie_nvd - Published: 2019-04-17 14:29 - Updated: 2026-06-17 02:43
Severity
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
References
cret@cert.orghttp://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.htmlMailing List, Third Party Advisory
cret@cert.orghttp://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.htmlThird Party Advisory, VDB Entry
cret@cert.orghttps://lists.debian.org/debian-lts-announce/2019/07/msg00030.htmlMailing List, Third Party Advisory
cret@cert.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/
cret@cert.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/
cret@cert.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/
cret@cert.orghttps://seclists.org/bugtraq/2019/May/40Mailing List, Third Party Advisory
cret@cert.orghttps://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.ascThird Party Advisory
cret@cert.orghttps://w1.fi/security/2019-2/Patch, Vendor Advisory
cret@cert.orghttps://www.synology.com/security/advisory/Synology_SA_19_16Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/07/msg00030.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/
af854a3a-2127-422b-91ae-364da2661108https://seclists.org/bugtraq/2019/May/40Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.ascThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://w1.fi/security/2019-2/Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.synology.com/security/advisory/Synology_SA_19_16Third Party Advisory
Impacted products
Vendor Product Version
w1.fi hostapd *
w1.fi wpa_supplicant *
fedoraproject fedora 28
fedoraproject fedora 29
fedoraproject fedora 30
opensuse backports_sle 15.0
opensuse backports_sle 15.0
opensuse leap 15.1
synology radius_server 3.0
synology router_manager *
debian debian_linux 8.0
freebsd freebsd 11.2
freebsd freebsd 11.2
freebsd freebsd 11.2
freebsd freebsd 11.2
freebsd freebsd 11.2
freebsd freebsd 11.2
freebsd freebsd 11.2
freebsd freebsd 11.2
freebsd freebsd 11.2
freebsd freebsd 11.2
freebsd freebsd 12.0
freebsd freebsd 12.0
freebsd freebsd 12.0
freebsd freebsd 12.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "hostapd with EAP-pwd support",
          "vendor": "Wi-Fi Alliance",
          "versions": [
            {
              "lessThanOrEqual": "2.7",
              "status": "affected",
              "version": "2.7",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "wpa_supplicant with EAP-pwd support",
          "vendor": "Wi-Fi Alliance",
          "versions": [
            {
              "lessThanOrEqual": "2.7",
              "status": "affected",
              "version": "2.7",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cret@cert.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5133129D-DA6B-485D-9FE7-33C994FBAF05",
              "versionEndIncluding": "2.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "46294B0E-0043-487D-AD8F-931DC05F0E78",
              "versionEndIncluding": "2.7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*",
              "matchCriteriaId": "DC1BD7B7-6D88-42B8-878E-F1318CA5FCAF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*",
              "matchCriteriaId": "D100F7CE-FC64-4CC6-852A-6136D72DA419",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
              "matchCriteriaId": "97A4B8DF-58DA-4AB6-A1F9-331B36409BA3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:opensuse:backports_sle:15.0:-:*:*:*:*:*:*",
              "matchCriteriaId": "D83DA865-E4A6-4FBF-AA1B-A969EBA6B2AD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*",
              "matchCriteriaId": "40513095-7E6E-46B3-B604-C926F1BA3568",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:synology:radius_server:3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "2C6E6871-7BB3-43BB-9A31-0B44B46C8D97",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BF272B20-75B8-4D3D-A09A-610A3F748A45",
              "versionEndExcluding": "1.2.3-8017",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*",
              "matchCriteriaId": "3ACD1D8D-B3BC-4E99-B846-90A4071DB87B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*",
              "matchCriteriaId": "699FE432-8DF0-49F1-A98B-0E19CE01E5CE",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*",
              "matchCriteriaId": "20B06752-39EE-4600-AC1F-69FB9C88E2A8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*",
              "matchCriteriaId": "22365F7C-2B00-4B61-84E8-EFBA3B8CFDC0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*",
              "matchCriteriaId": "E86CD544-86C4-4D9D-9CE5-087027509EDA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:*",
              "matchCriteriaId": "64E47AE7-BB45-428E-90E9-38BFDFF23650",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:*",
              "matchCriteriaId": "586B9FA3-65A2-41EB-A848-E4A75565F0CA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p8:*:*:*:*:*:*",
              "matchCriteriaId": "1164B48E-2F28-43C5-9B7B-546EAE12E27D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:*",
              "matchCriteriaId": "F0B15B89-3AD2-4E03-9F47-DA934702187B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "878DF67E-420A-4229-BEA8-DB9F7161ED9A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*",
              "matchCriteriaId": "826B53C2-517F-4FC6-92E8-E7FCB24F91B4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*",
              "matchCriteriaId": "93F10A46-AEF2-4FDD-92D6-0CF07B70F986",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.0:p2:*:*:*:*:*:*",
              "matchCriteriaId": "E1AD57A9-F53A-4E40-966E-F2F50852C5E4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*",
              "matchCriteriaId": "C4029113-130F-4A33-A8A0-BC3E74000378",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected."
    },
    {
      "lang": "es",
      "value": "Las implementaciones de EAP-PWD en hostapd y wpa_supplicant son vulnerables a los ataques de canal lateral (side-channel) como resultado de los patrones de acceso a la cach\u00e9. Todas las versiones de hostapd y wpa_supplicant con soporte de EAP-PWD son vulnerables. La capacidad de instalar y ejecutar aplicaciones es necesaria para un ataque con exito. Los patrones de acceso a memoria son visibles en cach\u00e9 compartido. Las contrase\u00f1as d\u00e9biles pueden ser crackeadas. Las versiones de hostapd/wpa_supplicant versi\u00f3n 2.7 y posteriores, no son vulnerables al ataque de tiempo descrito en CVE-2019-9494. Tanto hostapd con soporte EAP-pwd como wpa_supplicant con soporte EAP-pwd anterior y con la versi\u00f3n 2.7 est\u00e1n afectados."
    }
  ],
  "id": "CVE-2019-9495",
  "lastModified": "2026-06-17T02:43:49.080",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/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
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-04-17T14:29:03.887",
  "references": [
    {
      "source": "cret@cert.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html"
    },
    {
      "source": "cret@cert.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/"
    },
    {
      "source": "cret@cert.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/"
    },
    {
      "source": "cret@cert.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://seclists.org/bugtraq/2019/May/40"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://w1.fi/security/2019-2/"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.synology.com/security/advisory/Synology_SA_19_16"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://seclists.org/bugtraq/2019/May/40"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://w1.fi/security/2019-2/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.synology.com/security/advisory/Synology_SA_19_16"
    }
  ],
  "sourceIdentifier": "cret@cert.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-524"
        }
      ],
      "source": "cret@cert.org",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




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.



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.