{"cve":{"cve_id":"CVE-2022-36227","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.02445,"epss_percentile":0.84045,"epss_as_of":"2026-10-15","description":"In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the code-execution impact: \"In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution.\"","published_at":"2022-11-22T00:00:00Z","last_modified_at":"2026-10-08T21:17:48.930000Z","cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-476"],"nvd_references":["https://github.com/libarchive/libarchive/issues/1754","https://bugs.gentoo.org/882521","https://github.com/libarchive/libarchive/blob/v3.0.0a/libarchive/archive_write.c#L215","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V67OO2UUQAUJS3IK4JZPF6F3LUCBU6IS/","https://lists.debian.org/debian-lts-announce/2023/01/msg00034.html","https://security.gentoo.org/glsa/202309-14"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-10-11T15:42:54.398020Z"},"effective_severity":"CRITICAL","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"debian","vendor_name":"Debian","product_slug":"debian-linux","product_name":"debian_linux","version_start":"10.0","version_start_inclusive":true,"version_end":"10.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"},{"vendor_slug":"fedoraproject","vendor_name":"fedoraproject","product_slug":"fedora","product_name":"fedora","version_start":"37","version_start_inclusive":true,"version_end":"37","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*"},{"vendor_slug":"libarchive","vendor_name":"libarchive","product_slug":"libarchive","product_name":"libarchive","version_start":"3.0.0","version_start_inclusive":true,"version_end":"3.6.2","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"universal-forwarder","product_name":"Universal Forwarder","version_start":"8.2.0","version_start_inclusive":true,"version_end":"8.2.12","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"universal-forwarder","product_name":"Universal Forwarder","version_start":"9.1.0","version_start_inclusive":true,"version_end":"9.1.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/libarchive/libarchive/issues/1754","source_type":"MISC","tags":[]},{"url":"https://bugs.gentoo.org/882521","source_type":"MISC","tags":[]},{"url":"https://github.com/libarchive/libarchive/blob/v3.0.0a/libarchive/archive_write.c#L215","source_type":"MISC","tags":[]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V67OO2UUQAUJS3IK4JZPF6F3LUCBU6IS/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/01/msg00034.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://security.gentoo.org/glsa/202309-14","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2022-11-22T00:00:00Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-10-10T21:36:59.224259Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-10-10T21:36:59.224259Z","label":"CVSS score revised","source":"nvd"},{"type":"cvss_changed","at":"2026-10-10T21:36:59.224259Z","label":"CVSS score revised","source":"nvd"}]}