{"schema":"threatline.record/2","record":{"id":"CVE-2026-85977","aliases":[],"summary":"Libtirpc: libtirpc: denial of service via unbounded memory allocation during portmapper response decoding","details":"A flaw was found in libtirpc. A remote attacker can exploit this vulnerability by sending specially crafted PMAPPROC_DUMP replies to a client application that uses the pmap_getmaps() function against an attacker-controlled host. This unbounded decoding can lead to excessive memory and CPU allocation, causing the client process to experience a Denial of Service (DoS) due to resource exhaustion.","categories":["Operating systems"],"product":"Red Hat Hardened Images","vendor":"Red Hat","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-85977","source_modified_at":"2026-10-19T14:21:52.857Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Red Hat Hardened Images","vendor":"Red Hat","versions":[{"version":"1.3.8-0.1.hum1","lessThan":"*","versionType":"rpm","status":"unaffected"}],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-85977","source_modified_at":"2026-10-19T14:21:52.857Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat","versions":[],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-85977","source_modified_at":"2026-10-19T14:21:52.857Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat","versions":[],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-85977","source_modified_at":"2026-10-19T14:21:52.857Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat","versions":[],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-85977","source_modified_at":"2026-10-19T14:21:52.857Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat","versions":[],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-85977","source_modified_at":"2026-10-19T14:21:52.857Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat","versions":[],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-85977","source_modified_at":"2026-10-19T14:21:52.857Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat","versions":[],"defaultStatus":"affected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-85977","source_modified_at":"2026-10-19T14:21:52.857Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat","versions":[],"defaultStatus":"affected"}],"fixed_versions":[],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.0028,"percentile":0.19441,"score_date":"2026-10-23"},"published_at":"2026-10-16T18:20:43.454Z","modified_at":"2026-10-19T14:21:52.857Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-85977","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T14:21:52.857Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-85977","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://access.redhat.com/errata/RHSA-2026:80360","tags":["vendor-advisory","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://access.redhat.com/security/cve/CVE-2026-85977","tags":["vdb-entry","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478979","tags":["exploit"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-19T14:20:40.421460Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T14:21:52.857Z","content_hash":"ca63e8d1020623eb0fa746e37784db71c01f3cb21979e667f08ed8dc13e84f12"}}