{"id":"AZL-31095","summary":"CVE-2023-5215 affecting package libnbd for versions less than 1.12.1-3","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":"2026-04-01T05:09:57.497494Z","published":"2023-09-28T14:15:26Z","upstream":["CVE-2023-5215"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5215"}],"affected":[{"package":{"name":"libnbd","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/libnbd"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.1-3"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-31095.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}