CVE Vulnerability

CVE-2021-20261

A race condition was found in the Linux kernels implementation of the floppy disk drive controller driver software. The impact of this issue is lessened by the fact that the default permissions on the floppy device (/dev/fd0) are restricted to root. If the permissions on the device have changed the impact changes greatly. In the default configuration root (or equivalent) permissions are required to attack this flaw.

4.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

6.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0c80efe5956ccce9fe7ae5c78542578c07bc20a Mailing List Patch
https://bugzilla.redhat.com/show_bug.cgi?id=1932150 Issue Tracking Patch
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:4.5:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.5:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.5:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.5:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.5:-:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Information

Published : 2021-03-11 09:15

Updated : 2021-03-19 01:08

NVD link : CVE-2021-20261

Mitre link : CVE-2021-20261

Products Affected
No products.
CWE
CWE-362