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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
37
linux kernel
pi futexes
stack use-after-free

CVSS2

7.2

Attack Vector

LOCAL

Attack 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

CVSS3

7.8

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

EPSS

0

Percentile

10.1%

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< 4.4.0-208.240UNKNOWN
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< 4.4.0-1090.94UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1126.140UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1039.41~18.04.1UNKNOWN
Rows per page:
1-10 of 501

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cbl_mariner
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CVE-2021-3347 affecting package kernel 5.4.91-6
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[ASA-202102-23] linux: arbitrary code execution
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CVSS2

7.2

Attack Vector

LOCAL

Attack 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

CVSS3

7.8

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

EPSS

0

Percentile

10.1%

JSON
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