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ubuntuUbuntuUSN-4989-1
HistoryJun 16, 2021 - 12:00 a.m.

BlueZ vulnerabilities

2021-06-1600:00:00
ubuntu.com
152
bluez vulnerabilities
ubuntu
permissions check
array index
code execution
sensitive information
denial of service

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

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

AI Score

8.1

Confidence

Low

EPSS

0.05

Percentile

93.0%

JSON

Releases

  • Ubuntu 21.04
  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • bluez - Bluetooth tools and daemons

Details

It was discovered that BlueZ incorrectly checked certain permissions when
pairing. A local attacker could possibly use this issue to impersonate
devices. (CVE-2020-26558)

Jay LV discovered that BlueZ incorrectly handled redundant disconnect MGMT
events. A local attacker could use this issue to cause BlueZ to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27153)

Ziming Zhang discovered that BlueZ incorrectly handled certain array
indexes. A local attacker could use this issue to cause BlueZ to crash,
resulting in a denial of service, or possibly obtain sensitive information.
This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-3588)

OSVersionArchitecturePackageVersionFilename
Ubuntu21.04noarchlibbluetooth3< 5.56-0ubuntu4.1UNKNOWN
Ubuntu21.04noarchbluetooth< 5.56-0ubuntu4.1UNKNOWN
Ubuntu21.04noarchbluez< 5.56-0ubuntu4.1UNKNOWN
Ubuntu21.04noarchbluez-cups< 5.56-0ubuntu4.1UNKNOWN
Ubuntu21.04noarchbluez-dbg< 5.56-0ubuntu4.1UNKNOWN
Ubuntu21.04noarchbluez-hcidump< 5.56-0ubuntu4.1UNKNOWN
Ubuntu21.04noarchbluez-obexd< 5.56-0ubuntu4.1UNKNOWN
Ubuntu21.04noarchbluez-tests< 5.56-0ubuntu4.1UNKNOWN
Ubuntu21.04noarchlibbluetooth-dev< 5.56-0ubuntu4.1UNKNOWN
Ubuntu21.04noarchlibbluetooth3-dbg< 5.56-0ubuntu4.1UNKNOWN
Rows per page:
1-10 of 401

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Important: kernel
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CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

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

AI Score

8.1

Confidence

Low

EPSS

0.05

Percentile

93.0%

JSON
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