CVE-2020-25284 Missing authorization in n/a

What is CVE-2020-25284?

CVE-2020-25284 is a medium-severity missing authorization vulnerability in Debian Debian Linux, published on 13 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The rbd block device driver in drivers/block/rbd.c in the Linux kernel through 5.8.9 used incomplete permission checking for access to rbd devices, which could be leveraged by local attackers to map or unmap rbd block devices, aka CID-f44d04e696fe.

Weakness: CWE-863

Which versions are affected by CVE-2020-25284?

It affects 3 products.

Products include Debian Debian Linux, Linux kernel, Opensuse Leap.

How do I fix CVE-2020-25284?

Apply the vendor's patch.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-25284 being exploited?

There is no known exploitation of CVE-2020-25284 in the wild and no public exploit code.

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• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-25284, GHSA-5f3v-3wp6-f5wm, UBUNTU-CVE-2020-25284.