CVE-2020-25284

MEDIUM

Linux Kernel < 5.8.9 - Incorrect Authorization in rbd Block Device Driver

Title source: llm
STIX 2.1

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 (7)

Core 7
Core References
Third Party Advisory x_refsource_misc
https://twitter.com/grsecurity/status/1304537507560919041
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html

Scores

CVSS v3 4.1
EPSS 0.0008
EPSS Percentile 22.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-863
Status published
Products (3)
debian/debian_linux 9.0
linux/linux_kernel < 5.8.9
opensuse/leap 15.1
Published Sep 13, 2020
Tracked Since Feb 18, 2026