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ubuntucveUbuntu.comUB:CVE-2021-20317
HistorySep 27, 2021 - 12:00 a.m.

CVE-2021-20317

2021-09-2700:00:00
ubuntu.com
ubuntu.com
20

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

0.0004 Low

EPSS

Percentile

5.3%

JSON

A flaw was found in the Linux kernel. A corrupted timer tree caused the
task wakeup to be missing in the timerqueue_add function in
lib/timerqueue.c. This flaw allows a local attacker with special user
privileges to cause a denial of service, slowing and eventually stopping
the system while running OSP.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-166.174UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-222.255) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1118.125UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1102.107) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1138.152) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1118.125~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu14.04noarchlinux-azure< 4.15.0-1129.142~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1129.142~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-azure-4.15< 4.15.0-1129.142UNKNOWN
ubuntu22.04noarchlinux-azure-fde< anyUNKNOWN
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1-10 of 231

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Siemens SCALANCE LPE9403 Improper Initialization (CVE-2021-20317)
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Oracle Linux 8 : kernel (ELSA-2021-4647)
2021-11-18 00:00:00
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Linux kernel has unspecified vulnerabilities (CNVD-2022-06509)
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Denial Of Service (DoS)
2021-11-28 00:41:03
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2021-09-27 11:15:00
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Important: kernel-rt security and bug fix update
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(RHSA-2021:4875) Important: kernel-rt security and bug fix update
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2022-06-16 12:00:00
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2021-11-04 00:00:00
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2021-12-16 21:27:40
[SECURITY] [DLA 2941-1] linux-4.19 security update
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[SECURITY] [DSA 5096-1] linux security update
2022-03-09 15:30:58

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

0.0004 Low

EPSS

Percentile

5.3%

JSON
Related for UB:CVE-2021-20317
redhatcve1cve1nessus23debiancve1cnvd1veracode1prion1oraclelinux3almalinux1osv8rocky2redhat10openvas5ubuntu2cloudfoundry2amazon1ics1photon1debian3