CVE-2023-5215
low-risk
Published 2023-09-28
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.
Do I need to act?
-
0.05% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10
Medium
ADJACENT_NETWORK
/ HIGH complexity
Affected Products (3)
Affected Vendors
References (8)
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-5215
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2241041
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-5215
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2241041
23
/ 100
low-risk
Severity
14/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
9/34 · Low