Description
A flaw has been found in Open5GS up to 2.7.5. This affects the function decode_ipv6_header/ogs_pfcp_pdr_rule_find_by_packet of the file lib/pfcp/rule-match.c of the component PFCP Session Establishment Request Handler. Executing a manipulation can lead to reachable assertion. It is possible to launch the attack remotely. The exploit has been published and may be used. This patch is called b72d8349980076e2c033c8324f07747a86eea4f8. Applying a patch is advised to resolve this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Open5GS | 2.7.0, 2.7.1, 2.7.2, 2.7.3, 2.7.4, 2.7.5 | — |
References
- VDB-338561 | Open5GS PFCP Session Establishment Request rule-match.c ogs_pfcp_pdr_rule_find_by_packet assertion vdb-entry technical-description
- VDB-338561 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #719830 | Open5GS v2.7.5 Reachable Assertion third-party-advisory
- https://github.com/open5gs/open5gs/issues/4180 issue-tracking
- https://github.com/open5gs/open5gs/issues/4180#issuecomment-3615555671 issue-tracking
- https://github.com/open5gs/open5gs/issues/4180#issue-3666760066 exploit issue-tracking
- https://github.com/open5gs/open5gs/commit/b72d8349980076e2c033c8324f07747a86eea4f8 patch
- https://github.com/open5gs/open5gs/ product