CVE & CISA-KEV Catalog

CVE-2019-9494

MEDIUMEPSS 88th pctl
5.9
CVSS v3
NVD

Description

The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side channel attacks as a result of observable timing differences and cache access patterns. An attacker may be able to gain leaked information from a side channel attack that can be used for full password recovery. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.

How to fix

Remediation Available
wpaDebian
Fixed in:2:2.7+git20190128+0c1e29f-4CVE-2019-9494
Fixed in:2:2.7+git20190128+0c1e29f-4CVE-2019-9494
Fixed in:2:2.7+git20190128+0c1e29f-4CVE-2019-9494
Fixed in:2:2.7+git20190128+0c1e29f-4CVE-2019-9494

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

3.74%probability of exploitation in 30 days
88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.