free5GC: PCF npcf-policyauthorization POST /app-sessions panics on suppFeat=1 with missing AfRoutReq via nil pointer dereference
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| free5gc | free5gc | affected |
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| Free5gc | Free5gc |
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| Source | ID | Title |
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Github GHSA |
GHSA-wwqh-7jm5-gj7w | free5GC's PCF npcf-policyauthorization POST /app-sessions panics on suppFeat=1 with missing AfRoutReq via nil pointer dereference |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.350% probability within 30 days)
| Type | Values Removed | Values Added |
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| CPEs | cpe:2.3:a:free5gc:free5gc:*:*:*:*:*:*:*:* |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Free5gc
Free5gc free5gc |
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| Vendors & Products |
Free5gc
Free5gc free5gc |
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| Description | free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's PCF POST /npcf-policyauthorization/v1/app-sessions handler panics on a single authenticated request whose ascReqData.suppFeat == "1" (enabling traffic-routing feature negotiation) and whose medComponents entries supply an afAppId but NO AfRoutReq. The create path then calls provisioningOfTrafficRoutingInfo(smPolicy, appID, routeReq, ...) with routeReq == nil and dereferences routeReq.RouteToLocs (and other fields) without a nil check, causing runtime error: invalid memory address or nil pointer dereference. Gin recovery converts the panic into HTTP 500. This vulnerability is fixed in 4.2.2. | |
| Title | free5GC: PCF npcf-policyauthorization POST /app-sessions panics on suppFeat=1 with missing AfRoutReq via nil pointer dereference | |
| Weaknesses | CWE-476 CWE-754 |
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| References |
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| Metrics |
cvssV3_1
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