Description (CNA)
free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's UDR nudr-dr DELETE /subscription-data/{ueId}/{servingPlmnId}/ee-subscriptions/{subsId}/amf-subscriptions handler contains a nil-pointer dereference reachable from a single authenticated request, after one preparatory authenticated EE-subscription create. The handler checks _, ok = UESubsData.EeSubscriptionCollection[subsId] and sets a 404 problem-details on the miss path, but then continues to UESubsData.EeSubscriptionCollection[subsId].AmfSubscriptionInfos -- dereferencing the same missing entry instead of returning. Gin recovery converts the panic into HTTP 500, but the endpoint remains repeatedly panicable. This vulnerability is fixed in 4.2.2.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| free5gc / free5gc | affected < 4.2.2 |
CWE
CWE-476
References
- https://github.com/free5gc/free5gc/security/advisories/GHSA-4rqf-grm6-vf75
- https://github.com/free5gc/free5gc/issues/919
- https://github.com/free5gc/udr/pull/60
- https://github.com/free5gc/udr/commit/8a1d3c63be99d378806d771f086ff32f1867da99
ADP enrichment
No English description supplied.
No references supplied.