CVE-2020-25284

LOW

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.

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f44d04e696feaf13d192d942c4f14ad2e117065a

https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html

https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html

https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html

https://twitter.com/grsecurity/status/1304537507560919041

Details

Source: MITRE

Published: 2020-09-13

Updated: 2020-11-02

Type: CWE-732

Risk Information

CVSS v2.0

Base Score: 1.9

Vector: AV:L/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 3.4

Severity: LOW

CVSS v3.0

Base Score: 4.1

Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 0.5

Severity: MEDIUM