CVE-2019-11235 - Insufficient Verification of Data Authenticity

Severity

75%

Complexity

99%

Confidentiality

106%

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.

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.

CVSS 3.0 Base Score 9.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Overview

First reported 5 years ago

2019-04-22 11:29:00

Last updated 5 years ago

2019-05-13 18:29:00

Affected Software

Fedora

Red Hat Enterprise Linux (RHEL) 7.0 (7)

7.0

Red Hat Enterprise Linux Extended Update Support (EUS) 7.6

7.6

RedHat Enterprise Linux Server 7.0

7.0

Red Hat Enterprise Linux Server Advanced mission critical Update Support (AUS) 7.6

7.6

Red Hat Enterprise Linux Server Telecommunications Update Service (TUS) 7.6

7.6

RedHat Enterprise Linux Workstation 7.0

7.0

Canonical Ubuntu Linux 18.04 LTS Edition

18.04

Canonical Ubuntu Linux 18.10

18.10

Canonical Ubuntu Linux 19.04

19.04

openSUSE Leap 15.0

15.0

References

openSUSE-SU-2019:1346

Third Party Advisory

openSUSE-SU-2019:1394

openSUSE-SU-2020:0542

RHSA-2019:1131

Third Party Advisory

RHSA-2019:1142

https://bugzilla.redhat.com/show_bug.cgi?id=1695748

Issue Tracking, Patch, Third Party Advisory

https://freeradius.org/release_notes/?br=3.0.x&re=3.0.19

Release Notes, Vendor Advisory

https://freeradius.org/security/

Vendor Advisory

https://papers.mathyvanhoef.com/dragonblood.pdf

Technical Description, Third Party Advisory

USN-3954-1

Third Party Advisory

https://www.kb.cert.org/vuls/id/871675/

Not Applicable, Third Party Advisory, US Government Resource

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