{"items":[{"id":"NVI-00014996","kind":"vulnerability","title":"GoPacket's Diameter AVP decoder: uint32 underflow on vendor header size leads to unbounded ~4 GiB allocation (unauthenticated remote DoS)","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-6r28-9ppf-4hj5","CVE-2026-54345"],"plain_summary":"GitHub lists this reviewed advisory for github.com/gopacket/gopacket. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-6727320b47d0aca45915160a678842d6"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-08-05T19:04:17.910Z","value":"7.5 HIGH (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-6727320b47d0aca45915160a678842d6"},{"kind":"CVSS","as_of":"2026-08-05T19:04:17.910Z","value":"6.9 MEDIUM (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-6727320b47d0aca45915160a678842d6"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-0387da1da1565bc3575ec293f189deca","url":"https://github.com/advisories/GHSA-6r28-9ppf-4hj5","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6r28-9ppf-4hj5","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:59:04.660Z"},{"id":"sr-6727320b47d0aca45915160a678842d6","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54345","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-54345","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:48:12.360Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0387da1da1565bc3575ec293f189deca"],"technology":"github.com/gopacket/gopacket","known_exclusions":[],"conditions_summary":"## Summary\n\nThe Diameter AVP decoder in `github.com/gopacket/gopacket` computes `dataLength := avp.Length - uint32(headerSize)` without first ensuring `avp.Length >= headerSize`. When the Vendor flag is set, `headerSize` is 12, but the only length guard upstream rejects `avp.Length  CWE-770 unbounded allocation).\n\n## Root cause (file:line @ v1.6.0)\n\n`layers/diameter_avp_decoders.go`, `decodeDiameterAVP`:\n\n```go\navp.Length = uint32(data[5])<<16 | uint32(data[6])<<8 | uint32(data[7]) // 24-bit wire value\n\nif avp.Length < 8 {                       // only rejects < 8\n    return DiameterAVP{}, 0, fmt.Errorf(\"invalid AVP length: %d\", avp.Length)\n}\n\nheaderSize := 8\ndataOffset := 8\nif avp.Flags.Vendor {                     // Vendor flag = wire bit data[4] &","public_affected_ranges":["<= 1.6.0"]}],"null_published_at":"2026-11-08T19:53:44.064Z","source_updated_at":"2026-07-28T16:14:37.000Z","source_disclosed_at":"2026-07-28T16:14:36.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-03T09:59:04.660Z"},{"id":"NVI-00014996","kind":"vulnerability","title":"GoPacket's Diameter AVP decoder: uint32 underflow on vendor header size leads to unbounded ~4 GiB allocation (unauthenticated remote DoS)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6r28-9ppf-4hj5","CVE-2026-54345"],"plain_summary":"GitHub lists this reviewed advisory for github.com/gopacket/gopacket. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0387da1da1565bc3575ec293f189deca"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-0387da1da1565bc3575ec293f189deca","url":"https://github.com/advisories/GHSA-6r28-9ppf-4hj5","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6r28-9ppf-4hj5","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:59:04.660Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0387da1da1565bc3575ec293f189deca"],"technology":"github.com/gopacket/gopacket","known_exclusions":[],"conditions_summary":"## Summary\n\nThe Diameter AVP decoder in `github.com/gopacket/gopacket` computes `dataLength := avp.Length - uint32(headerSize)` without first ensuring `avp.Length >= headerSize`. When the Vendor flag is set, `headerSize` is 12, but the only length guard upstream rejects `avp.Length  CWE-770 unbounded allocation).\n\n## Root cause (file:line @ v1.6.0)\n\n`layers/diameter_avp_decoders.go`, `decodeDiameterAVP`:\n\n```go\navp.Length = uint32(data[5])<<16 | uint32(data[6])<<8 | uint32(data[7]) // 24-bit wire value\n\nif avp.Length < 8 {                       // only rejects < 8\n    return DiameterAVP{}, 0, fmt.Errorf(\"invalid AVP length: %d\", avp.Length)\n}\n\nheaderSize := 8\ndataOffset := 8\nif avp.Flags.Vendor {                     // Vendor flag = wire bit data[4] &","public_affected_ranges":["<= 1.6.0"]}],"null_published_at":"2026-11-03T10:03:26.532Z","source_updated_at":"2026-07-28T16:14:37.000Z","source_disclosed_at":"2026-07-28T16:14:36.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-03T09:59:04.660Z"}],"next_cursor":null,"snapshot_revision":"42594"}