UBUNTU-CVE-2021-36367

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Source
https://ubuntu.com/security/CVE-2021-36367
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36367.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-36367
Related
Published
2021-07-09T21:15:00Z
Modified
2024-10-15T14:08:16Z
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

Ubuntu:Pro:16.04:LTS / putty

Package

Name
putty
Purl
pkg:deb/ubuntu/putty?arch=src?distro=esm-apps/xenial

Affected ranges

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

Affected versions

0.*

0.65-2
0.66-1
0.66-2
0.66-3
0.66-4
0.67-1
0.67-2
0.67-3build0.16.04.1
0.67-3+deb9u1build0.16.04.1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / putty

Package

Name
putty
Purl
pkg:deb/ubuntu/putty?arch=src?distro=esm-apps/bionic

Affected ranges

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

Affected versions

0.*

0.70-1
0.70-2
0.70-3
0.70-4

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / putty

Package

Name
putty
Purl
pkg:deb/ubuntu/putty?arch=src?distro=focal

Affected ranges

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

Affected versions

0.*

0.72-1
0.73-1
0.73-2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / putty

Package

Name
putty
Purl
pkg:deb/ubuntu/putty?arch=src?distro=jammy

Affected ranges

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

Affected versions

0.*

0.75-3
0.76-1
0.76-2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}