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ubuntucveUbuntu.comUB:CVE-2022-0002
HistoryMar 08, 2022 - 12:00 a.m.

CVE-2022-0002

2022-03-0800:00:00
ubuntu.com
ubuntu.com
23

6.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.0005 Low

EPSS

Percentile

14.6%

JSON

Non-transparent sharing of branch predictor within a context in some
Intel® Processors may allow an authorized user to potentially enable
information disclosure via local access.

Notes

Author Note
sbeattie unprivileged eBPF was already disabled by default for 5.13 and newer kernels this issue is priority medium for trusty/3.13 kernels, as unprivileged BPF was not yet available in the Linux kernel of that era.
OSVersionArchitecturePackageVersionFilename
ubuntu21.10noarchlinux< 5.13.0-35.40UNKNOWN
ubuntu18.04noarchlinux< 4.15.0-171.180UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-104.118UNKNOWN
ubuntu14.04noarchlinux< anyUNKNOWN
ubuntu16.04noarchlinux< 4.4.0-221.254) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1123.132UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1068.72UNKNOWN
ubuntu21.10noarchlinux-aws< 5.13.0-1017.19UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1101.106) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1137.151) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
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6.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.0005 Low

EPSS

Percentile

14.6%

JSON
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