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ubuntuUbuntuUSN-5244-2
HistoryMay 09, 2022 - 12:00 a.m.

DBus vulnerability

2022-05-0900:00:00
ubuntu.com
48

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.6 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

Releases

  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • dbus - simple interprocess messaging system

Details

USN-5244-1 fixed a vulnerability in DBus. This update provides
the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:

Daniel Onaca discovered that DBus contained a use-after-free vulnerability,
caused by the incorrect handling of usernames sharing the same UID. An
attacker could possibly use this issue to cause DBus to crash, resulting
in a denial of service.

OSVersionArchitecturePackageVersionFilename
Ubuntu20.04noarchdbus< 1.12.16-2ubuntu2.2UNKNOWN
Ubuntu20.04noarchdbus-1-doc< 1.12.16-2ubuntu2.2UNKNOWN
Ubuntu20.04noarchdbus-dbgsym< 1.12.16-2ubuntu2.2UNKNOWN
Ubuntu20.04noarchdbus-tests< 1.12.16-2ubuntu2.2UNKNOWN
Ubuntu20.04noarchdbus-tests-dbgsym< 1.12.16-2ubuntu2.2UNKNOWN
Ubuntu20.04noarchdbus-udeb< 1.12.16-2ubuntu2.2UNKNOWN
Ubuntu20.04noarchdbus-user-session< 1.12.16-2ubuntu2.2UNKNOWN
Ubuntu20.04noarchdbus-x11< 1.12.16-2ubuntu2.2UNKNOWN
Ubuntu20.04noarchdbus-x11-dbgsym< 1.12.16-2ubuntu2.2UNKNOWN
Ubuntu20.04noarchlibdbus-1-3< 1.12.16-2ubuntu2.2UNKNOWN
Rows per page:
1-10 of 261

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.6 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%