CVE-2019-17185

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.46%
Vendor Advisory opensuse.org Vendor Advisory freeradius.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://freeradius.org/security/ vendor advisory
https://github.com/FreeRADIUS/freeradius-server/releases/tag/release_3_0_20 third party advisory release notes
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html mailing list third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-17185?
CVE-2019-17185 has been scored as a high severity vulnerability.
How to fix CVE-2019-17185?
To fix CVE-2019-17185, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-17185 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-17185 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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