Vulnerability · Published Nov 23, 2023 · Assigned by mitre
CVE-2023-49208
Critical 9.8
In plain English
A critical-severity buffer overflow 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 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.9%top 40.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | glewlwyd | 2.7.5-3+deb12u1 | DEBIAN-CVE-2023-49208 |
| Debian:13 | glewlwyd | 2.7.6+ds-1 | DEBIAN-CVE-2023-49208 |
| Ubuntu:22.04:LTS | glewlwyd | no fix listed | UBUNTU-CVE-2023-49208 |
Affected products (as reported)
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H