| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/ellanetworks/core | < 1.5.1 | 1.5.1 |
| ella core | < 1.5.1 | 1.5.1 |
Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service.
An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required.
Added length validation on NR algorithm bitstrings before accessing them in the PathSwitchRequest handler.
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