CVE-2021-36367

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-36367
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36367.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-36367
Related
Published
2021-07-09T21:15:08Z
Modified
2024-09-18T03:15:18.673035Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

PuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication response. This makes it easier for an attacker-controlled SSH server to present a later spoofed authentication prompt (that the attacker can use to capture credential data, and use that data for purposes that are undesired by the client user).

References

Affected packages

Alpine:v3.11 / putty

Package

Name
putty
Purl
pkg:apk/alpine/putty?arch=source

Affected ranges

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

Affected versions

0.*

0.60-r0
0.61-r0
0.62-r0
0.63-r0
0.64-r0
0.64-r1
0.65-r0
0.66-r0
0.67-r0
0.68-r0
0.69-r0
0.70-r0
0.70-r1
0.71-r0
0.71-r1
0.73-r0
0.73-r1
0.73-r2
0.74-r0

Alpine:v3.12 / putty

Package

Name
putty
Purl
pkg:apk/alpine/putty?arch=source

Affected ranges

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

Affected versions

0.*

0.60-r0
0.61-r0
0.62-r0
0.63-r0
0.64-r0
0.64-r1
0.65-r0
0.66-r0
0.67-r0
0.68-r0
0.69-r0
0.70-r0
0.70-r1
0.71-r0
0.71-r1
0.73-r0
0.73-r1
0.73-r2
0.74-r0

Alpine:v3.13 / putty

Package

Name
putty
Purl
pkg:apk/alpine/putty?arch=source

Affected ranges

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

Affected versions

0.*

0.60-r0
0.61-r0
0.62-r0
0.63-r0
0.64-r0
0.64-r1
0.65-r0
0.66-r0
0.67-r0
0.68-r0
0.69-r0
0.70-r0
0.70-r1
0.71-r0
0.71-r1
0.73-r0
0.73-r1
0.73-r2
0.74-r0

Alpine:v3.14 / putty

Package

Name
putty
Purl
pkg:apk/alpine/putty?arch=source

Affected ranges

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

Affected versions

0.*

0.60-r0
0.61-r0
0.62-r0
0.63-r0
0.64-r0
0.64-r1
0.65-r0
0.66-r0
0.67-r0
0.68-r0
0.69-r0
0.70-r0
0.70-r1
0.71-r0
0.71-r1
0.73-r0
0.73-r1
0.73-r2
0.74-r0
0.75-r0

Alpine:v3.15 / putty

Package

Name
putty
Purl
pkg:apk/alpine/putty?arch=source

Affected ranges

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

Affected versions

0.*

0.60-r0
0.61-r0
0.62-r0
0.63-r0
0.64-r0
0.64-r1
0.65-r0
0.66-r0
0.67-r0
0.68-r0
0.69-r0
0.70-r0
0.70-r1
0.71-r0
0.71-r1
0.73-r0
0.73-r1
0.73-r2
0.74-r0
0.75-r0

Alpine:v3.16 / putty

Package

Name
putty
Purl
pkg:apk/alpine/putty?arch=source

Affected ranges

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

Affected versions

0.*

0.60-r0
0.61-r0
0.62-r0
0.63-r0
0.64-r0
0.64-r1
0.65-r0
0.66-r0
0.67-r0
0.68-r0
0.69-r0
0.70-r0
0.70-r1
0.71-r0
0.71-r1
0.73-r0
0.73-r1
0.73-r2
0.74-r0
0.75-r0

Alpine:v3.17 / putty

Package

Name
putty
Purl
pkg:apk/alpine/putty?arch=source

Affected ranges

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

Affected versions

0.*

0.60-r0
0.61-r0
0.62-r0
0.63-r0
0.64-r0
0.64-r1
0.65-r0
0.66-r0
0.67-r0
0.68-r0
0.69-r0
0.70-r0
0.70-r1
0.71-r0
0.71-r1
0.73-r0
0.73-r1
0.73-r2
0.74-r0
0.75-r0

Alpine:v3.18 / putty

Package

Name
putty
Purl
pkg:apk/alpine/putty?arch=source

Affected ranges

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

Affected versions

0.*

0.60-r0
0.61-r0
0.62-r0
0.63-r0
0.64-r0
0.64-r1
0.65-r0
0.66-r0
0.67-r0
0.68-r0
0.69-r0
0.70-r0
0.70-r1
0.71-r0
0.71-r1
0.73-r0
0.73-r1
0.73-r2
0.74-r0
0.75-r0

Alpine:v3.19 / putty

Package

Name
putty
Purl
pkg:apk/alpine/putty?arch=source

Affected ranges

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

Affected versions

0.*

0.60-r0
0.61-r0
0.62-r0
0.63-r0
0.64-r0
0.64-r1
0.65-r0
0.66-r0
0.67-r0
0.68-r0
0.69-r0
0.70-r0
0.70-r1
0.71-r0
0.71-r1
0.73-r0
0.73-r1
0.73-r2
0.74-r0
0.75-r0

Debian:11 / putty

Package

Name
putty
Purl
pkg:deb/debian/putty?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.74-1+deb11u1

Affected versions

0.*

0.74-1
0.74-1+deb11u1~deb10u1
0.74-1+deb11u1~deb10u2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / putty

Package

Name
putty
Purl
pkg:deb/debian/putty?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.75-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / putty

Package

Name
putty
Purl
pkg:deb/debian/putty?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.75-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}