Vulnerability · Published Mar 18, 2022 · Assigned by mitre
CVE-2022-27240
Critical 9.8
In plain English
A critical-severity security flaw in the glewlwyd package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 75% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)1.6%top 24.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
scheme/webauthn.c in Glewlwyd SSO server 2.x before 2.6.2 has a buffer overflow associated with a webauthn assertion.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | glewlwyd | 2.6.1-2 | DEBIAN-CVE-2022-27240 |
| Debian:13 | glewlwyd | 2.6.1-2 | DEBIAN-CVE-2022-27240 |
| Ubuntu:22.04:LTS | glewlwyd | no fix listed | UBUNTU-CVE-2022-27240 |