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ubuntuUbuntuUSN-4533-1
HistorySep 22, 2020 - 12:00 a.m.

LTSP Display Manager vulnerabilities

2020-09-2200:00:00
ubuntu.com
41

CVSS2

7.2

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

CVSS3

7.8

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

AI Score

7.8

Confidence

High

EPSS

0

Percentile

12.6%

Releases

  • Ubuntu 20.04 LTS

Packages

  • ldm - LTSP display manager

Details

Veeti Veteläinen discovered that the LTSP Display Manager (ldm)
incorrectly handled user logins from unsupported shells. A local attacker
could possibly use this issue to gain root privileges. (CVE-2019-20373)

OSVersionArchitecturePackageVersionFilename
Ubuntu20.04noarchldm< 2:2.18.06-1+deb10u1build0.20.04.1UNKNOWN
Ubuntu20.04noarchldm-dbgsym< 2:2.18.06-1+deb10u1build0.20.04.1UNKNOWN
Ubuntu20.04noarchldm-server< 2:2.18.06-1+deb10u1build0.20.04.1UNKNOWN

CVSS2

7.2

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

CVSS3

7.8

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

AI Score

7.8

Confidence

High

EPSS

0

Percentile

12.6%