Vulnerability CVE-2019-11235


Published: 2019-04-22

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.

Type:

CWE-345

(Insufficient Verification of Data Authenticity)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Redhat -> Enterprise linux 
Redhat -> Enterprise linux eus 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server aus 
Redhat -> Enterprise linux server tus 
Redhat -> Enterprise linux workstation 
Opensuse -> LEAP 
Freeradius -> Freeradius 
Fedoraproject -> Fedora 
Canonical -> Ubuntu linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00032.html
https://access.redhat.com/errata/RHSA-2019:1131
https://access.redhat.com/errata/RHSA-2019:1142
https://bugzilla.redhat.com/show_bug.cgi?id=1695748
https://freeradius.org/release_notes/?br=3.0.x&re=3.0.19
https://freeradius.org/security/
https://papers.mathyvanhoef.com/dragonblood.pdf
https://usn.ubuntu.com/3954-1/
https://www.kb.cert.org/vuls/id/871675/

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