{"id":"CVE-2023-5871","summary":"Libnbd: malicious nbd server may crash libnbd","details":"A flaw was found in libnbd, due to a malicious Network Block Device (NBD), a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service.","modified":"2026-07-11T03:53:52.538782657Z","published":"2023-11-27T11:58:44.737Z","related":["ALSA-2024:2204","SUSE-SU-2023:4463-1","openSUSE-SU-2024:13422-1"],"database_specific":{"cwe_ids":["CWE-617"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5871.json","cna_assigner":"redhat"},"references":[{"type":"WEB","url":"https://access.redhat.com/downloads/content/package-browser/"},{"type":"WEB","url":"https://lists.libguestfs.org/archives/list/guestfs@lists.libguestfs.org/thread/PFVUCMPFQUDC23JXSCUUPXIGDZ7XCFMD/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:2204"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2023-5871"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5871.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5871"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2247308"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.com/nbdkit/libnbd","events":[{"introduced":"b2c956827f39d8c7ead3118f7ead1089cc52dc61"},{"fixed":"999560eb9edf5037b4fcb4ffbbb0cfa75d88d0b1"},{"introduced":"346e993816e6568b564031fcc8a62f751a005d7c"}],"database_specific":{"cpe":["cpe:2.3:a:redhat:libnbd:*:*:*:*:*:*:*:*","cpe:2.3:a:redhat:libnbd:1.19.1:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.17.4"},{"fixed":"1.18.2"},{"introduced":"1.19.1"},{"last_affected":"1.19.1"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["1.19.1","v1.18.1","v1.18.0","v1.17.5","v1.17.4"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-5871.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}