CVE-2019-11235

Description

FreeRADIUS before 3.0.19 mishandles the "each participant verifies that the received scalar is within a range, and that the received group element is a valid point on the curve being used" protection mechanism, aka a "Dragonblood" issue, a similar issue to CVE-2019-9498 and CVE-2019-9499.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 6.66% Top 10%
Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory freeradius.org Vendor Advisory freeradius.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://freeradius.org/release_notes/?br=3.0.x&re=3.0.19 release notes vendor advisory
https://papers.mathyvanhoef.com/dragonblood.pdf third party advisory technical description
https://www.kb.cert.org/vuls/id/871675/ third party advisory not applicable us government resource
https://freeradius.org/security/ vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1695748 patch third party advisory issue tracking
https://usn.ubuntu.com/3954-1/ third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00014.html third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:1131 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2019:1142 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00032.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00033.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-11235?
CVE-2019-11235 has been scored as a critical severity vulnerability.
How to fix CVE-2019-11235?
To fix CVE-2019-11235, 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-2019-11235 being actively exploited in the wild?
It is possible that CVE-2019-11235 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~7% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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