CVE-2019-16275

MEDIUMCVSS 6.5/10EPSS 1.21%

Last modified

CVE-2019-16275 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). EPSS estimates a 1.21% chance of exploitation in the next 30 days.

Description

hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range.

Metrics

CVSS 3.1
6.5/10

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

EPSS Probability
1.21%

64.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
W1.FiHostapd<= 2.9
W1.FiWpa Supplicant<= 2.9
DebianDebian Linux8.0
DebianDebian Linux10.0
CanonicalUbuntu Linux12.04
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux19.04

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-16275?
hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range.
How severe is CVE-2019-16275?
CVE-2019-16275 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.
How do I fix CVE-2019-16275?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-16275?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST