CVE-2019-13456

MEDIUM
6.5
CVSS Score
Published: December 3, 2019 at 07:53 PM UTC
Updated: June 17, 2026 at 02:16 AM UTC
3 products affected across 3 vendorsEnterprise LinuxLeapFreeradius· also runs on 1 platform

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.0.0 ≤ v ≤ 3.0.19
linux-linux-kernel (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

References (5)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html
x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1737663
x_refsource_MISCVendor Advisory
https://freeradius.org/security/
x_refsource_MISCExploitThird Party Advisory
https://wpa3.mathyvanhoef.com

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-203

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