The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication bypass for SSH logins. The pam_access.so module doesnt correctly restrict login if a user tries to connect from an IP address that is not resolvable via DNS. In such conditions, a user with denied access to a machine can still get access. NOTE: the relevance of this issue is largely limited to openSUSE Tumbleweed and openSUSE Factory; it does not affect Linux-PAM upstream.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux-pam | Linux-pam | * | 1.5.2-6.1 (excluding) |
| Pam | Ubuntu | bionic | * |
| Pam | Ubuntu | esm-infra/xenial | * |
| Pam | Ubuntu | focal | * |
| Pam | Ubuntu | jammy | * |
| Pam | Ubuntu | kinetic | * |
| Pam | Ubuntu | trusty | * |
| Pam | Ubuntu | trusty/esm | * |
| Pam | Ubuntu | xenial | * |