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ubuntucveUbuntu.comUB:CVE-2022-20566
HistoryDec 16, 2022 - 12:00 a.m.

CVE-2022-20566

2022-12-1600:00:00
ubuntu.com
ubuntu.com
13

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

JSON

In l2cap_chan_put of l2cap_core, there is a possible use after free due to
improper locking. This could lead to local escalation of privilege with no
additional execution privileges needed. User interaction is not needed for
exploitation.Product: AndroidVersions: Android kernelAndroid ID:
A-165329981References: Upstream kernel

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-197.208UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-128.144UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-50.56UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-237.271) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1143.155UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1086.93UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1021.25UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1116.122) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1154.169) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1021.25~20.04.1UNKNOWN
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7.8 High

CVSS3

Attack Vector

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Attack Complexity

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Privileges Required

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User Interaction

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Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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4.3 Medium

CVSS2

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Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

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AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

JSON
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