CVE-2019-13456

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

In FreeRADIUS 3.0 through 3.0.19, on average 1 in every 2048 EAP-pwd handshakes fails because the password element cannot be found within 10 iterations of the hunting and pecking loop. This leaks information that an attacker can use to recover the password of any user. This information leakage is similar to the "Dragonblood" attack and CVE-2019-9494.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-203

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.htmlMailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1737663Exploit, Issue Tracking, Patch, Third Party Advisory
https://freeradius.org/security/Vendor Advisory
https://github.com/FreeRADIUS/freeradius-server/commit/3ea2a5a026e73d81cd9a3e9bbd4300c433004bfaPatch, Third Party Advisory
https://wpa3.mathyvanhoef.comExploit, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.htmlMailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1737663Exploit, Issue Tracking, Patch, Third Party Advisory
https://freeradius.org/security/Vendor Advisory
https://github.com/FreeRADIUS/freeradius-server/commit/3ea2a5a026e73d81cd9a3e9bbd4300c433004bfaPatch, Third Party Advisory
https://wpa3.mathyvanhoef.comExploit, Third Party Advisory

Timeline

Published: Dec 3, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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