CVE-2020-25284
Advisory lineage Upstream: 0 Downstream: 27
Modified
Published: 13 Sept 2020, 17:28
Last modified:04 Aug 2024, 15:33
Vulnerability Summary
Overall Risk (default)
low
16/100 CVSS Score
4.1 MEDIUM
v3.1 (nvd)
EPSS Score
0.08% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
13 Sept 2020, 17:28
Published
Vulnerability first disclosed
04 Aug 2024, 15:33
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.1•MEDIUM•Score: 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
- v2.0•LOW•Score: 1.9AV:L/AC:M/Au:N/C:N/I:P/A:N
EPSS Trends
Current EPSS score: 0.08%• Percentile: 23%
Techniques & Countermeasures
- CWE-863•Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Affected Systems
- debian•debian_linux
9.0
- linux•linux_kernel
< 5.8.9
- opensuse•leap
15.1
References (7)
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f44d04e696feaf13d192d942c4f14ad2e117065a
- https://twitter.com/grsecurity/status/1304537507560919041
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html