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ubuntucveUbuntu.comUB:CVE-2021-43389
HistoryNov 04, 2021 - 12:00 a.m.

CVE-2021-43389

2021-11-0400:00:00
ubuntu.com
ubuntu.com
34

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

32.4%

JSON

An issue was discovered in the Linux kernel before 5.14.15. There is an
array-index-out-of-bounds flaw in the detach_capi_ctr function in
drivers/isdn/capi/kcapi.c.

Bugs

Notes

Author Note
cascardo Adding a CAPI controller with CMTP requires CAP_NET_ADMIN in the initial namespace (init_ns). Other ISDN controllers that use CAPI have been removed upstream.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-166.174UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-92.103UNKNOWN
ubuntu21.04noarchlinux< 5.11.0-44.48UNKNOWN
ubuntu21.10noarchlinux< 5.13.0-23.23UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-222.255UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1118.125UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1061.64UNKNOWN
ubuntu21.04noarchlinux-aws< 5.11.0-1023.24UNKNOWN
ubuntu21.10noarchlinux-aws< 5.13.0-1008.9UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1102.107UNKNOWN
Rows per page:
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References

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2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

32.4%

JSON
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