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CVE-2019-11555

UnknownEPSS 3.25%

Last modified

CVE-2019-11555 is a vulnerability of currently unknown severity. The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate fragmentation reassembly state properly for a case where an unexpected fragment could be received. This could result in process termination due to a NULL pointer dereference (denial of service). EPSS estimates a 3.25% chance of exploitation in the next 30 days.

Description

The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate fragmentation reassembly state properly for a case where an unexpected fragment could be received. This could result in process termination due to a NULL pointer dereference (denial of service). This affects eap_server/eap_server_pwd.c and eap_peer/eap_pwd.c.

Metrics

EPSS Probability
3.25%

86.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
W1.FiHostapd< 2.8
W1.FiWpa Supplicant< 2.8

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-11555?
The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate fragmentation reassembly state properly for a case where an unexpected fragment could be received. This could result in process termination due to a NULL pointer dereference (denial of service). This affects eap_server/eap_server_pwd.c and eap_peer/eap_pwd.c.
How severe is CVE-2019-11555?
Severity scoring for CVE-2019-11555 is pending analysis. The EPSS model estimates a 3.25% probability of exploitation in the next 30 days.
How do I fix CVE-2019-11555?
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-2019-11555?

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

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Source: NVD / NIST