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Linux Kernel における初期化に関する脆弱性
Title Linux Kernel における初期化に関する脆弱性
Summary

Linux Kernel には、初期化に関する脆弱性が存在します。

Possible impacts 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (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 Nov. 9, 2020, midnight
Registration Date Dec. 2, 2021, 6:13 p.m.
Last Update Dec. 2, 2021, 6:13 p.m.
CVSS3.0 : 警告
Score 4.5
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS2.0 : 警告
Score 4.4
Vector AV:L/AC:M/Au:N/C:P/I:P/A:P
Affected System
レッドハット
Red Hat Enterprise Linux 
Linux
Linux Kernel 
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, 6:13 p.m.
NVD Vulnerability Information
CVE-2020-35508
Summary

A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.

Publication Date March 27, 2021, 2:15 a.m.
Registration Date March 27, 2021, 12:01 p.m.
Last Update Nov. 21, 2024, 2:27 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:linux:linux_kernel:5.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.12:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.12:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.12:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.12
Configuration2 or higher or less more than less than
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:a700s:-:*:*:*:*:*:*:*
Configuration4 or higher or less more than less than
cpe:2.3:o:netapp:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*
Configuration5 or higher or less more than less than
cpe:2.3:o:netapp:fas8300_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:fas8300:-:*:*:*:*:*:*:*
Configuration6 or higher or less more than less than
cpe:2.3:o:netapp:fas8700_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:fas8700:-:*:*:*:*:*:*:*
Configuration7 or higher or less more than less than
cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:aff_a400:-:*:*:*:*:*:*:*
Configuration8 or higher or less more than less than
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
Configuration9 or higher or less more than less than
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
Configuration10 or higher or less more than less than
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
Configuration11 or higher or less more than less than
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*
Configuration12 or higher or less more than less than
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*
Configuration13 or higher or less more than less than
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*
Configuration14 or higher or less more than less than
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
Configuration15 or higher or less more than less than
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
Configuration16 or higher or less more than less than
cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:*
Configuration17 or higher or less more than less than
cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:*
Configuration18 or higher or less more than less than
cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List