CVE-2015-5314

Name: CVE-2015-5314
Creator: NVD / NIST
Published: 2018-02-21T16:29:00.287+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.33%

Last modified Jun 17, 2026

CVE-2015-5314 is a vulnerability of currently unknown severity. The eap_pwd_process function in eap_server/eap_server_pwd.c in hostapd 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when used with (1) an internal EAP server or (2) a RADIUS server and EAP-pwd is enabled in a runtime configuration, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message.. EPSS estimates a 2.33% chance of exploitation in the next 30 days.

Description

The eap_pwd_process function in eap_server/eap_server_pwd.c in hostapd 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when used with (1) an internal EAP server or (2) a RADIUS server and EAP-pwd is enabled in a runtime configuration, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message.

Metrics

EPSS Probability

2.33%

81.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
W1.Fi	Wpa Supplicant	>= 2.0, < 2.6
Debian	Debian Linux	8.0

References

http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txtMitigation, Vendor Advisory
http://www.openwall.com/lists/oss-security/2015/11/10/10Mailing List, Mitigation, Patch, Third Party Advisory
http://www.ubuntu.com/usn/USN-2808-1Broken Link
https://www.debian.org/security/2015/dsa-3397Third Party Advisory
http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txtMitigation, Vendor Advisory
http://www.openwall.com/lists/oss-security/2015/11/10/10Mailing List, Mitigation, Patch, Third Party Advisory
http://www.ubuntu.com/usn/USN-2808-1Broken Link
https://www.debian.org/security/2015/dsa-3397Third Party Advisory

Timeline

Published: Feb 21, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-5314?

How severe is CVE-2015-5314?

Severity scoring for CVE-2015-5314 is pending analysis. The EPSS model estimates a 2.33% probability of exploitation in the next 30 days.

How do I fix CVE-2015-5314?

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-2015-5314?

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

Scan your code now

Source: NVD / NIST