Vulnerability Monitor

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CVE-2019-17185

In FreeRADIUS 3.0.x before 3.0.20, the EAP-pwd module used a global OpenSSL BN_CTX instance to handle all handshakes. This mean multiple threads use the same BN_CTX instance concurrently, resulting in crashes when concurrent EAP-pwd handshakes are initiated. This can be abused by an adversary as a Denial-of-Service (DoS) attack.

Published

2020-03-21T01:15:12.243

Last Modified

2024-11-21T04:31:49.137

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-662

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	freeradius	freeradius	< 3.0.20	Yes
Operating System	opensuse	leap	15.1	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html Mailing List, Third Party Advisory ([email protected])
https://freeradius.org/security/ Vendor Advisory ([email protected])
https://github.com/FreeRADIUS/freeradius-server/releases/tag/release_3_0_20 Release Notes, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://freeradius.org/security/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/FreeRADIUS/freeradius-server/releases/tag/release_3_0_20 Release Notes, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)