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ubuntucveUbuntu.comUB:CVE-2021-43400
HistoryNov 04, 2021 - 12:00 a.m.

CVE-2021-43400

2021-11-0400:00:00
ubuntu.com
ubuntu.com
9

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

61.1%

An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free
can occur when a client disconnects during D-Bus processing of a WriteValue
call.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchbluez< 5.48-0ubuntu3.6UNKNOWN
ubuntu20.04noarchbluez< 5.53-0ubuntu3.4UNKNOWN
ubuntu21.04noarchbluez< 5.56-0ubuntu4.3UNKNOWN
ubuntu21.10noarchbluez< 5.60-0ubuntu2.1UNKNOWN
ubuntu16.04noarchbluez< anyUNKNOWN

9.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

61.1%