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CertccCVE-2019-9496

HistoryApr 17, 2019 - 2:29 p.m.

CVE-2019-9496

2019-04-1714:29:03

CWE-642

CWE-287

certcc

web.nvd.nist.gov

150

cve-2019-9496

hostapd

sae support

authentication

denial of service

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

6.4

Confidence

High

EPSS

0.011

Percentile

84.6%

JSON

An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.

Affected configurations

Nvd

Node

w1.fihostapdRange≤2.7

w1.fiwpa_supplicantRange≤2.7

Node

fedoraprojectfedoraMatch28

fedoraprojectfedoraMatch29

fedoraprojectfedoraMatch30

VendorProductVersionCPE
w1.fihostapd*cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*
w1.fiwpa_supplicant*cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*
fedoraprojectfedora28cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*
fedoraprojectfedora29cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
fedoraprojectfedora30cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
w1.fi	hostapd	*	cpe:2.3:a:w1.fi:hostapd::::::::
w1.fi	wpa_supplicant	*	cpe:2.3:a:w1.fi:wpa_supplicant::::::::
fedoraproject	fedora	28	cpe:2.3:o:fedoraproject:fedora:28:::::::*
fedoraproject	fedora	29	cpe:2.3:o:fedoraproject:fedora:29:::::::*
fedoraproject	fedora	30	cpe:2.3:o:fedoraproject:fedora:30:::::::*

CNA Affected

[
  {
    "product": "hostapd with SAE support",
    "vendor": "Wi-Fi Alliance",
    "versions": [
      {
        "lessThanOrEqual": "2.7",
        "status": "affected",
        "version": "2.7",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "wpa_supplicant with SAE support",
    "vendor": "Wi-Fi Alliance",
    "versions": [
      {
        "lessThanOrEqual": "2.7",
        "status": "affected",
        "version": "2.7",
        "versionType": "custom"
      }
    ]
  }
]