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[email protected]CVE-2020-16125

HistoryNov 10, 2020 - 5:15 a.m.

CVE-2020-16125

2020-11-1005:15:11

CWE-754

[email protected]

web.nvd.nist.gov

196

cve-2020-16125

gdm3

security issue

local user

privilege escalation

4.6 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.2 High

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

6.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

36.1%

JSON

gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can’t contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could be be chained with an additional issue that could allow a local user to create a new privileged account.

Affected configurations

NVD

Node

gnomegnome_display_managerRange<3.36.2

gnomegnome_display_managerRange3.38.0–3.38.2

CPENameOperatorVersion
gnome:gnome_display_managergnome gnome display managerlt3.36.2
gnome:gnome_display_managergnome gnome display managerlt3.38.2

CPE	Name	Operator	Version
gnome:gnome_display_manager	gnome gnome display manager	lt	3.36.2
gnome:gnome_display_manager	gnome gnome display manager	lt	3.38.2

CNA Affected

[
  {
    "product": "GDM3",
    "vendor": "Gnome",
    "versions": [
      {
        "lessThan": "3.36.4",
        "status": "affected",
        "version": "3.36",
        "versionType": "custom"
      },
      {
        "lessThan": "3.38.2",
        "status": "affected",
        "version": "3.38",
        "versionType": "custom"
      }
    ]
  }
]