A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request. When a client requests block status information for a very large data range, exceeding a certain limit, it causes an internal error in the nbdkit, leading to a denial of service.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade nbdkitNo solution exists | May 15, 2025 | May 15, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jun 9, 2025 |
| Suse | — | Upgrade nbdkit-example-pluginsUpgrade nbdkit-ssh-pluginUpgrade nbdkit-develUpgrade nbdkit-tmpdisk-pluginUpgrade nbdkit-gzip-filterUpgrade nbdkit-basic-pluginsUpgrade nbdkit-linuxdisk-pluginUpgrade nbdkit-basic-filtersUpgrade nbdkit-vddk-pluginUpgrade nbdkit-curl-pluginUpgrade nbdkit-bash-completionUpgrade nbdkit-tar-filterUpgrade nbdkit-xz-filterUpgrade nbdkit-serverUpgrade nbdkit-nbd-pluginUpgrade nbdkitUpgrade nbdkit-python-plugin | Dec 5, 2025 | Jun 11, 2025 |
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