{"id":"ALPINE-CVE-2023-5215","details":"A flaw was found in libnbd. A server can reply with a block size larger than 2^63 (the NBD spec states the size is a 64-bit unsigned value). This issue could lead to an application crash or other unintended behavior for NBD clients that doesn't treat the return value of the nbd_get_size() function correctly.","modified":"2026-11-03T06:32:43.916775980Z","published":"2023-09-28T14:15:26.117Z","upstream":["CVE-2023-5215"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2023-5215"}],"affected":[{"package":{"name":"libnbd","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/libnbd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.18.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-5215.json"}},{"package":{"name":"libnbd","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/libnbd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.18.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-5215.json"}},{"package":{"name":"libnbd","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/libnbd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.18.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-5215.json"}},{"package":{"name":"libnbd","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/libnbd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.18.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-5215.json"}},{"package":{"name":"libnbd","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/libnbd?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.18.0-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-5215.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}