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nvd[email protected]NVD:CVE-2020-27825
HistoryDec 11, 2020 - 7:15 p.m.

CVE-2020-27825

2020-12-1119:15:12
CWE-362
web.nvd.nist.gov
8
use-after-free
linux kernel
denial of service
race problem
information leak

CVSS2

5.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

5.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.4

Confidence

High

EPSS

0

Percentile

5.1%

A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.

Affected configurations

Nvd
Node
linuxlinux_kernelMatch5.10rc1
Node
redhatenterprise_linuxMatch7.0
OR
redhatenterprise_linuxMatch8.0
OR
redhatenterprise_mrgMatch2.0
Node
debiandebian_linuxMatch9.0
OR
debiandebian_linuxMatch10.0
Node
netappcloud_backupMatch-
Node
netappsolidfire_baseboard_management_controller_firmwareMatch-
AND
netappsolidfire_baseboard_management_controllerMatch-
Node
netapph410c_firmwareMatch-
AND
netapph410cMatch-
VendorProductVersionCPE
linuxlinux_kernel5.10cpe:2.3:o:linux:linux_kernel:5.10:rc1:*:*:*:*:*:*
redhatenterprise_linux7.0cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhatenterprise_mrg2.0cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
netappcloud_backup-cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
netappsolidfire_baseboard_management_controller_firmware-cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*
netappsolidfire_baseboard_management_controller-cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*
netapph410c_firmware-cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
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CVSS2

5.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

5.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.4

Confidence

High

EPSS

0

Percentile

5.1%