Description
A security flaw has been discovered in Open5GS 2.7.6. This issue affects the function smf_gx_cca_cb/smf_gy_cca_cb/smf_s6b of the component CCA Message Handler. The manipulation results in denial of service. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit has been released to the public and may be used for attacks.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Open5GS | 2.7.6 | — |
References
- VDB-353875 | Open5GS CCA Message smf_s6b denial of service vdb-entry technical-description
- VDB-353875 | CTI Indicators (IOB, IOC, TTP, IOA) signature permissions-required
- Submit #771349 | Open5GS SMF v2.7.6 Denial of Service third-party-advisory
- https://github.com/open5gs/open5gs/issues/4342 issue-tracking
- https://github.com/open5gs/open5gs/issues/4342#issue-4021772232 exploit issue-tracking
- https://github.com/open5gs/open5gs/ product