Description
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.
Published: 2023-09-28
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-57545 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.
History

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Redhat Advanced Virtualization Enterprise Linux Libnbd
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-11-08T08:55:24.112Z

Reserved: 2023-09-26T21:54:47.184Z

Link: CVE-2023-5215

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-09-28T14:15:26.117

Modified: 2024-11-21T08:41:18.790

Link: CVE-2023-5215

cve-icon Redhat

Severity : Low

Publid Date: 2023-09-21T00:00:00Z

Links: CVE-2023-5215 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses