CVE-2019-9495 The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns

2019-04-1713:31:08

CWE-524

certcc

www.cve.org

AI Score

6.6

Confidence

Low

EPSS

0.008

Percentile

82.5%

JSON

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.

CNA Affected

[
  {
    "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"
      }
    ]
  }
]