CVE-2021-40818
Published: 8 September 2021
scheme/webauthn.c in Glewlwyd SSO server through 2.5.3 has a buffer overflow during FIDO2 signature validation in webauthn registration.
Priority
Status
Package | Release | Status |
---|---|---|
glewlwyd Launchpad, Ubuntu, Debian |
impish |
Ignored
(end of life)
|
bionic |
Needs triage
|
|
trusty |
Does not exist
|
|
xenial |
Ignored
(end of standard support)
|
|
focal |
Needs triage
|
|
upstream |
Released
(2.5.2-3)
|
|
hirsute |
Ignored
(end of life)
|
|
kinetic |
Ignored
(end of life, was needs-triage)
|
|
jammy |
Needs triage
|
|
lunar |
Not vulnerable
(2.7.1-1ubuntu1)
|
|
mantic |
Not vulnerable
(2.7.1-1ubuntu1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |