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ubuntucveUbuntu.comUB:CVE-2021-3347
HistoryJan 29, 2021 - 12:00 a.m.

CVE-2021-3347

2021-01-2900:00:00
ubuntu.com
ubuntu.com
27

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

9.3%

JSON

An issue was discovered in the Linux kernel through 5.10.11. PI futexes
have a kernel stack use-after-free during fault handling, allowing local
users to execute code in the kernel, aka CID-34b1a1ce1458.

Notes

Author Note
sbeattie the commits with no breaks entries are prerequisite fixes for the final patch.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-141.145UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-67.75UNKNOWN
ubuntu20.10noarchlinux< 5.8.0-49.55UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-208.240) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1098.105UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1039.41UNKNOWN
ubuntu20.10noarchlinux-aws< 5.8.0-1028.30UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1090.94) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1126.140) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1039.41~18.04.1UNKNOWN
Rows per page:
1-10 of 511

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2022-04-21 21:21:15

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

9.3%

JSON
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