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ubuntucveUbuntu.comUB:CVE-2021-39698
HistoryMar 16, 2022 - 12:00 a.m.

CVE-2021-39698

2022-03-1600:00:00
ubuntu.com
ubuntu.com
18

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%

In aio_poll_complete_work of aio.c, there is a possible memory corruption
due to a use after free. 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-185125206References: Upstream kernel

OSVersionArchitecturePackageVersionFilename
ubuntu21.10noarchlinux< 5.13.0-37.42UNKNOWN
ubuntu18.04noarchlinux< 4.15.0-169.177UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-100.113UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1121.129UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1066.69UNKNOWN
ubuntu21.10noarchlinux-aws< 5.13.0-1019.21UNKNOWN
ubuntu20.04noarchlinux-aws-5.13< 5.13.0-1019.21~20.04.1UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1066.69~18.04.1UNKNOWN
ubuntu16.04noarchlinux-aws-hwe< 4.15.0-1120.128~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu14.04noarchlinux-azure< 4.15.0-1131.144~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
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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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%

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