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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2020-16122
HistoryNov 07, 2020 - 4:15 a.m.

CVE-2020-16122

2020-11-0704:15:12
Debian Security Bug Tracker
security-tracker.debian.org
19
packagekit
apt backend
trust vulnerability
policykit rules

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

8.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

12.6%

PackageKit’s apt backend mistakenly treated all local debs as trusted. The apt security model is based on repository trust and not on the contents of individual files. On sites with configured PolicyKit rules this may allow users to install malicious packages.

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

8.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0

Percentile

12.6%