CVE-2021-28363

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-28363
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28363.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-28363
Aliases
Related
Published
2021-03-15T18:15:19Z
Modified
2024-12-05T15:27:17.313204Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies. The initial connection to the HTTPS proxy (if an SSLContext isn't given via proxy_config) doesn't verify the hostname of the certificate. This means certificates for different servers that still validate properly with the default urllib3 SSLContext will be silently accepted.

References

Affected packages

Alpine:v3.14 / py3-urllib3

Package

Name
py3-urllib3
Purl
pkg:apk/alpine/py3-urllib3?arch=source

Affected ranges

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

Affected versions

1.*

1.18-r0
1.21.1-r0
1.22-r0
1.24.1-r0
1.24.1-r1
1.24.2-r0
1.25.1-r0
1.25.2-r0
1.25.3-r0
1.25.5-r0
1.25.6-r0
1.25.6-r1
1.25.7-r0
1.25.7-r1
1.25.8-r0
1.25.9-r0
1.25.10-r0
1.25.11-r0
1.26.0-r0
1.26.1-r0
1.26.2-r0
1.26.2-r1
1.26.3-r0

Alpine:v3.15 / py3-urllib3

Package

Name
py3-urllib3
Purl
pkg:apk/alpine/py3-urllib3?arch=source

Affected ranges

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

Affected versions

1.*

1.18-r0
1.21.1-r0
1.22-r0
1.24.1-r0
1.24.1-r1
1.24.2-r0
1.25.1-r0
1.25.2-r0
1.25.3-r0
1.25.5-r0
1.25.6-r0
1.25.6-r1
1.25.7-r0
1.25.7-r1
1.25.8-r0
1.25.9-r0
1.25.10-r0
1.25.11-r0
1.26.0-r0
1.26.1-r0
1.26.2-r0
1.26.2-r1
1.26.3-r0

Alpine:v3.16 / py3-urllib3

Package

Name
py3-urllib3
Purl
pkg:apk/alpine/py3-urllib3?arch=source

Affected ranges

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

Affected versions

1.*

1.18-r0
1.21.1-r0
1.22-r0
1.24.1-r0
1.24.1-r1
1.24.2-r0
1.25.1-r0
1.25.2-r0
1.25.3-r0
1.25.5-r0
1.25.6-r0
1.25.6-r1
1.25.7-r0
1.25.7-r1
1.25.8-r0
1.25.9-r0
1.25.10-r0
1.25.11-r0
1.26.0-r0
1.26.1-r0
1.26.2-r0
1.26.2-r1
1.26.3-r0

Alpine:v3.17 / py3-urllib3

Package

Name
py3-urllib3
Purl
pkg:apk/alpine/py3-urllib3?arch=source

Affected ranges

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

Affected versions

1.*

1.18-r0
1.21.1-r0
1.22-r0
1.24.1-r0
1.24.1-r1
1.24.2-r0
1.25.1-r0
1.25.2-r0
1.25.3-r0
1.25.5-r0
1.25.6-r0
1.25.6-r1
1.25.7-r0
1.25.7-r1
1.25.8-r0
1.25.9-r0
1.25.10-r0
1.25.11-r0
1.26.0-r0
1.26.1-r0
1.26.2-r0
1.26.2-r1
1.26.3-r0

Alpine:v3.18 / py3-urllib3

Package

Name
py3-urllib3
Purl
pkg:apk/alpine/py3-urllib3?arch=source

Affected ranges

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

Affected versions

1.*

1.18-r0
1.21.1-r0
1.22-r0
1.24.1-r0
1.24.1-r1
1.24.2-r0
1.25.1-r0
1.25.2-r0
1.25.3-r0
1.25.5-r0
1.25.6-r0
1.25.6-r1
1.25.7-r0
1.25.7-r1
1.25.8-r0
1.25.9-r0
1.25.10-r0
1.25.11-r0
1.26.0-r0
1.26.1-r0
1.26.2-r0
1.26.2-r1
1.26.3-r0

Alpine:v3.19 / py3-urllib3

Package

Name
py3-urllib3
Purl
pkg:apk/alpine/py3-urllib3?arch=source

Affected ranges

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

Affected versions

1.*

1.18-r0
1.21.1-r0
1.22-r0
1.24.1-r0
1.24.1-r1
1.24.2-r0
1.25.1-r0
1.25.2-r0
1.25.3-r0
1.25.5-r0
1.25.6-r0
1.25.6-r1
1.25.7-r0
1.25.7-r1
1.25.8-r0
1.25.9-r0
1.25.10-r0
1.25.11-r0
1.26.0-r0
1.26.1-r0
1.26.2-r0
1.26.2-r1
1.26.3-r0

Alpine:v3.20 / py3-urllib3

Package

Name
py3-urllib3
Purl
pkg:apk/alpine/py3-urllib3?arch=source

Affected ranges

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

Affected versions

1.*

1.18-r0
1.21.1-r0
1.22-r0
1.24.1-r0
1.24.1-r1
1.24.2-r0
1.25.1-r0
1.25.2-r0
1.25.3-r0
1.25.5-r0
1.25.6-r0
1.25.6-r1
1.25.7-r0
1.25.7-r1
1.25.8-r0
1.25.9-r0
1.25.10-r0
1.25.11-r0
1.26.0-r0
1.26.1-r0
1.26.2-r0
1.26.2-r1
1.26.3-r0

Alpine:v3.21 / py3-urllib3

Package

Name
py3-urllib3
Purl
pkg:apk/alpine/py3-urllib3?arch=source

Affected ranges

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

Affected versions

1.*

1.18-r0
1.21.1-r0
1.22-r0
1.24.1-r0
1.24.1-r1
1.24.2-r0
1.25.1-r0
1.25.2-r0
1.25.3-r0
1.25.5-r0
1.25.6-r0
1.25.6-r1
1.25.7-r0
1.25.7-r1
1.25.8-r0
1.25.9-r0
1.25.10-r0
1.25.11-r0
1.26.0-r0
1.26.1-r0
1.26.2-r0
1.26.2-r1
1.26.3-r0

Debian:11 / python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/debian/python-urllib3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.26.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/debian/python-urllib3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.26.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/debian/python-urllib3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.26.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/urllib3/urllib3

Affected ranges

Type
GIT
Repo
https://github.com/urllib3/urllib3
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8d65ea1ecf6e2cdc27d42124e587c1b83a3118b0

Affected versions

0.*

0.3
0.3.1
0.4
0.4.1

1.*

1.0
1.0.1
1.0.2
1.1
1.10
1.10.1
1.10.2
1.2
1.2.1
1.25
1.25.1
1.25.2
1.25.3
1.25.4
1.25.5
1.25.6
1.25.7
1.25.8
1.26.0
1.26.1
1.26.2
1.26.3
1.3
1.4
1.5
1.6
1.7
1.7.1
1.8
1.8.1
1.8.2
1.8.3
1.9
1.9.1