libnbd-1.18.1-3.el9

Network Block Device (NBD) is a protocol for accessing Block Devices (hard disks and disk-like devices) over a Network. The libnbd is a userspace client library for writing NBD clients.

Security Fix(es):

* libnbd: Malicious NBD server may crash libnbd (CVE-2023-5871)
* libnbd: Crash or misbehaviour when NBD server returns an unexpected block size (CVE-2023-5215)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the MIRACLE LINUX 9.4 Release Notes linked from the References section.

CVE-2023-5215
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.
CVE-2023-5871
A flaw was found in libnbd, due to a malicious Network Block Device (NBD), a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service.