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ubuntucveUbuntu.comUB:CVE-2021-43566
HistoryJan 11, 2022 - 12:00 a.m.

CVE-2021-43566

2022-01-1100:00:00
ubuntu.com
ubuntu.com
12

2.5 Low

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

1.2 Low

CVSS2

Access Vector

LOCAL

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

38.7%

All versions of Samba prior to 4.13.16 are vulnerable to a malicious client
using an SMB1 or NFS race to allow a directory to be created in an area of
the server file system not exported under the share definition. Note that
SMB1 has to be enabled, or the share also available via NFS in order for
this attack to succeed.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchsamba< 4.13.17~dfsg-0ubuntu1UNKNOWN
ubuntu22.10noarchsamba< 4.13.17~dfsg-0ubuntu1UNKNOWN
ubuntu14.04noarchsamba< anyUNKNOWN
ubuntu16.04noarchsamba< anyUNKNOWN
ubuntu18.04noarchsamba< anyUNKNOWN
ubuntu20.04noarchsamba< 2:4.13.17~dfsg-0ubuntu0.21.04.1UNKNOWN
ubuntu21.10noarchsamba< 2:4.13.17~dfsg-0ubuntu0.21.10.1UNKNOWN
ubuntu23.04noarchsamba< 4.13.17~dfsg-0ubuntu1UNKNOWN
ubuntu23.10noarchsamba< 4.13.17~dfsg-0ubuntu1UNKNOWN

2.5 Low

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

1.2 Low

CVSS2

Access Vector

LOCAL

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

38.7%

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