Vulnerability · Published Nov 10, 2024 · Assigned by mitre
CVE-2021-35473
Critical 9.1
In plain English
A critical-severity security flaw in the lemonldap-ng package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
An issue was discovered in LemonLDAP::NG before 2.0.12. There is a missing expiration check in the OAuth2.0 handler, i.e., it does not verify access token validity. An attacker can use a expired access token from an OIDC client to access the OAuth2 handler The earliest affected version is 2.0.4.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | lemonldap-ng | 2.0.11+ds-4 | DEBIAN-CVE-2021-35473 |
| Debian:13 | lemonldap-ng | 2.0.11+ds-4 | DEBIAN-CVE-2021-35473 |
| Debian:14 | lemonldap-ng | 2.0.11+ds-4 | DEBIAN-CVE-2021-35473 |
Affected products (as reported)
Weakness: CWE-613 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N