{"id":"CVE-2022-43677","aliases":["EUVD-2022-7023","GHSA-59hj-62f5-fgmc","GO-2022-1083"],"status":"published","title":"free5GC vulnerable to malformed NGAP message crashing the AMF and NGAP decoders","description":"In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00757,"percentile":0.55511,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-10-24T00:00:00Z","modified":"2026-10-28T02:31:04Z","affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/free5gc/free5gc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.2.1"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/free5gc/free5gc","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"3.2.1"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/free5gc/aper","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]}],"products":[{"vendor":"free5gc","product":"free5gc"}],"references":[{"url":"https://github.com/free5gc/free5gc/issues/402","tags":["x_transferred","Exploit","Issue Tracking","Third Party Advisory","report","web"]},{"url":"https://www.trendmicro.com/en_us/research/23/j/asn1-vulnerabilities-in-5g-cores.html","tags":["x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-43677","tags":["advisory"]},{"url":"https://pkg.go.dev/vuln/GO-2022-1083","tags":["web"]},{"url":"https://github.com/advisories/GHSA-59hj-62f5-fgmc"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/43xxx/CVE-2022-43677.json","tags":["advisory"]},{"url":"https://github.com/free5gc/free5gc","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-43677","description":"In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.","status":"published","published":"2022-10-24T00:00:00Z","modified":"2024-08-03T13:40:05.778Z","updated_at":"2026-11-02T14:34:25.618175Z"}],"euvd":[{"id":"EUVD-2022-7023","description":"In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.","status":"published","published":"2022-10-24T00:00:00Z","modified":"2024-08-03T13:40:05Z","updated_at":"2026-11-03T03:25:19.130756Z"}],"ghsa":[{"id":"GHSA-59hj-62f5-fgmc","title":"free5GC vulnerable to malformed NGAP message crashing the AMF and NGAP decoders","description":"In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in `aper.GetBitString`.","status":"published","published":"2022-10-24T19:00:24Z","modified":"2024-01-23T20:38:22Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T14:37:32.302254Z"}],"nvd":[{"id":"CVE-2022-43677","description":"In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.","status":"published","published":"2022-10-24T14:15:53.24Z","modified":"2026-06-17T05:07:06.033Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:31.127985Z"}],"osv":[{"id":"GHSA-59hj-62f5-fgmc","title":"free5GC vulnerable to malformed NGAP message crashing the AMF and NGAP decoders","description":"In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in `aper.GetBitString`.","status":"published","published":"2022-10-24T19:00:24Z","modified":"2023-11-08T04:10:44.92506Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:46:38.213481Z"},{"id":"CVE-2022-43677","description":"In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.","status":"published","published":"2022-10-24T00:00:00Z","modified":"2026-10-28T02:31:04.490168441Z","updated_at":"2026-11-02T15:44:27.186787Z"},{"id":"GO-2022-1083","title":"Panic on malformed messages in github.com/free5gc/aper","description":"A malformed message can crash the free5gc/amf and free5gc/ngap decoders via an index-out-of-range panic in aper.GetBitString.","status":"published","published":"2022-11-02T21:52:22Z","modified":"2024-05-20T16:03:47Z","updated_at":"2026-11-02T15:47:00.918515Z"}]}}