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ubuntucveUbuntu.comUB:CVE-2021-20316
HistoryAug 23, 2022 - 12:00 a.m.

CVE-2021-20316

2022-08-2300:00:00
ubuntu.com
ubuntu.com
18

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

3.6 Low

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

A flaw was found in the way Samba handled file/directory metadata. This
flaw allows an authenticated attacker with permissions to read or modify
share metadata, to perform this operation outside of the share.

Bugs

Notes

Author Note
mdeslaur per upstream, fixing this required a whole rewrite of the VFS layer and there is no reasonable way to fix this in older versions. Marking this CVE as ignored for older releases.
OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchsamba< anyUNKNOWN
ubuntu16.04noarchsamba< anyUNKNOWN

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

3.6 Low

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

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