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Linux Kernel における脆弱性
Title Linux Kernel における脆弱性
Summary

Linux Kernel には、不特定の脆弱性が存在します。 ベンダは、本脆弱性を CID-3ebba796fa25 として公開しています。

Possible impacts サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date March 4, 2021, midnight
Registration Date Dec. 2, 2021, 6:04 p.m.
Last Update Dec. 2, 2021, 6:04 p.m.
CVSS3.0 : 警告
Score 5.5
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS2.0 : 警告
Score 4.9
Vector AV:L/AC:L/Au:N/C:N/I:N/A:C
Affected System
Fedora Project
Fedora 
Linux
Linux Kernel 5.11.8 まで
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2021年12月02日]
  掲載		 Dec. 2, 2021, 6:04 p.m.
NVD Vulnerability Information
CVE-2021-28951
Summary

An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25.

Publication Date March 21, 2021, 5:15 a.m.
Registration Date March 21, 2021, 10:03 a.m.
Last Update Nov. 21, 2024, 3 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11.8
Configuration2 or higher or less more than less than
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:a250:-:*:*:*:*:*:*:*
Configuration4 or higher or less more than less than
cpe:2.3:o:netapp:aff_500f_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:aff_500f:-:*:*:*:*:*:*:*
Configuration5 or higher or less more than less than
cpe:2.3:o:netapp:fas_500f_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:fas_500f:-:*:*:*:*:*:*:*
Configuration6 or higher or less more than less than
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
Configuration7 or higher or less more than less than
cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List