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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2019-13377

The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2019-13377
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 10:34 UTC · Revision 1

Source evidence

CVE-2019-13377

core-osv · Original source

Published 15 Aug 2019, 17:15 UTC

The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.

osv:CVE-2019-13377
Complete source record
{
  "id": "25ee150039af5f15a391ddb4bd0eb9cb6724964337c35cf2b89efa909def36a1",
  "url": "https://osv.dev/vulnerability/CVE-2019-13377",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-13377",
    "summary": "The implementations of SAE and EAP-pwd in hostapd and wpa_supplicant 2.x through 2.8 are vulnerable to side-channel attacks as a result of observable timing differences and cache access patterns when Brainpool curves are used. An attacker may be able to gain leaked information from a side-channel attack that can be used for full password recovery.",
    "evidence": "osv:CVE-2019-13377",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2019-13377",
      "aliases": [
        "CVE-2019-13377"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.w1.fi/cgit/hostap",
              "type": "GIT",
              "events": [
                {
                  "introduced": "22760dd94722a61175ff90c59d88c4cda1ed5e23"
                },
                {
                  "last_affected": "63962824309bb428e5f73d9caae08fcb949fbe36"
                },
                {
                  "fixed": "147bf7b88a9c231322b5b574263071ca6dbb0503"
                },
                {
                  "fixed": "cd803299ca485eb857e37c88f973fccfbb8600e5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0"
                      },
                      {
                        "last_affected": "2.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "147bf7b88a9c231322b5b574263071ca6dbb0503"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "cd803299ca485eb857e37c88f973fccfbb8600e5"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "hostap_2_8",
            "hostap_2_7",
            "hostap_2_6",
            "hostap_2_5",
            "hostap_2_4",
            "hostap_2_3",
            "hostap_2_2",
            "hostap_2_1",
            "aosp-kk-from-upstream",
            "hostap_2_0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-13377.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:41.844802870Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IELLEPIXWQOJFW4SZMU3WQHO63JFAHA4/",
        "https://seclists.org/bugtraq/2019/Sep/56",
        "https://usn.ubuntu.com/4098-1/",
        "https://www.debian.org/security/2019/dsa-4538",
        "https://w1.fi/cgit/hostap/commit/?id=147bf7b88a9c231322b5b574263071ca6dbb0503",
        "https://w1.fi/cgit/hostap/commit/?id=cd803299ca485eb857e37c88f973fccfbb8600e5"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  },
                  {
                    "introduced": "19.04"
                  },
                  {
                    "last_affected": "19.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "30"
                  },
                  {
                    "last_affected": "30"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-13377",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382016,
  "published_at": "2019-08-15T17:15:13.41+00:00"
}