Description
scheme/webauthn.c in Glewlwyd SSO server 2.x before 2.6.2 has a buffer overflow associated with a webauthn assertion.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 13 | glewlwyd | 2.6.1-2 | — |
| Debian 12 | glewlwyd | 2.6.1-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | glewlwyd | No fix yet | — |
| Ubuntu 20.04 LTS | glewlwyd | No fix yet | — |
| Ubuntu 18.04 LTS | glewlwyd | No fix yet | — |