ALPINE-CVE-2020-27780

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Source
https://security.alpinelinux.org/vuln/CVE-2020-27780
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-27780.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2020-27780
Upstream
Published
2020-12-18T00:15:14Z
Modified
2025-09-30T05:19:01.177996Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.

References

Affected packages

Alpine:v3.13

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1

Alpine:v3.14

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1-r0

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1

Alpine:v3.15

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1-r0

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1

Alpine:v3.16

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1-r0

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1

Alpine:v3.17

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1-r0

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1

Alpine:v3.18

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1-r0

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1

Alpine:v3.19

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1-r0

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1

Alpine:v3.20

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1-r0

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1

Alpine:v3.21

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1-r0

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1

Alpine:v3.22

linux-pam

Package

Name
linux-pam
Purl
pkg:apk/alpine/linux-pam?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.1-r0

Affected versions

1.*

1.1.3-r0
1.1.3-r1
1.1.3-r2
1.1.3-r3
1.1.3-r4
1.1.5-r0
1.1.6-r0
1.1.8-r0
1.1.8-r1
1.1.8-r2
1.2.0-r0
1.2.1-r0
1.2.1-r1
1.3.0-r0
1.3.0-r1
1.3.1-r0
1.3.1-r1
1.3.1-r2
1.3.1-r3
1.3.1-r4
1.4.0-r0
1.4.0-r1