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.
References (4)
Scores
CVSS v3
5.3
EPSS
0.0005
EPSS Percentile
14.2%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-252
CWE-241
Status
published
Products (3)
redhat/enterprise_linux
8.0
redhat/enterprise_linux
9.0
redhat/libnbd
< 1.18.0
Published
Sep 28, 2023
Tracked Since
Feb 18, 2026