The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite loop) via a crafted certificate.
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Strongswan | Strongswan | * | 5.5.2 (including) |
| Strongswan | Ubuntu | devel | * |
| Strongswan | Ubuntu | trusty | * |
| Strongswan | Ubuntu | xenial | * |
| Strongswan | Ubuntu | yakkety | * |
| Strongswan | Ubuntu | zesty | * |