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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.5:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.5:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.5:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.5:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.5:rc4:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

History

21 Nov 2024, 05:46

Type Values Removed Values Added
References () https://bugzilla.redhat.com/show_bug.cgi?id=1932150 - Issue Tracking, Patch, Third Party Advisory () https://bugzilla.redhat.com/show_bug.cgi?id=1932150 - Issue Tracking, Patch, Third Party Advisory
References () https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0c80efe5956ccce9fe7ae5c78542578c07bc20a - Mailing List, Patch, Vendor Advisory () https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0c80efe5956ccce9fe7ae5c78542578c07bc20a - Mailing List, Patch, Vendor Advisory

Information

Published : 2021-03-11 21:15

Updated : 2024-11-21 05:46


NVD link : CVE-2021-20261

Mitre link : CVE-2021-20261

CVE.ORG link : CVE-2021-20261


JSON object : View

Products Affected

linux

  • linux_kernel

redhat

  • enterprise_linux
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')