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cloudfoundryCloud FoundryCFOUNDRY:6212B057FC69171CB35A504A83DF4903
HistoryNov 19, 2020 - 12:00 a.m.

USN-4581-1: Python vulnerability | Cloud Foundry

2020-11-1900:00:00
Cloud Foundry
www.cloudfoundry.org
42
python vulnerability
canonical ubuntu
cloud foundry
crlf injection
medium severity

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

EPSS

0.004

Percentile

72.3%

JSON

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 14.04
  • Canonical Ubuntu 16.04
  • Canonical Ubuntu 18.04

Description

It was discovered that Python incorrectly handled certain character sequences. A remote attacker could possibly use this issue to perform CRLF injection.

CVEs contained in this USN include: CVE-2020-26116.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • cflinuxfs3
    • All versions prior to 0.209.0
  • Xenial Stemcells
    • 315.x versions prior to 315.198
    • 456.x versions prior to 456.125
    • 621.x versions prior to 621.89
    • All other stemcells not listed.
  • CF Deployment
    • All versions prior to 14.0.0

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:

  • cflinuxfs3
    • Upgrade All versions to 0.209.0 or greater
  • Xenial Stemcells
    • Upgrade 315.x versions to 315.198 or greater
    • Upgrade 456.x versions to 456.125 or greater
    • Upgrade 621.x versions to 621.89 or greater
    • All other stemcells should be upgraded to the latest version available on bosh.io.
  • CF Deployment
    • Upgrade All versions to 14.0.0 or greater

References

History

2020-11-20: Initial vulnerability report published.

Affected configurations

Vulners
Node
cloudfoundrycflinuxfs3Range<0.209.0
OR
cloudfoundryxenial_stemcellsRange<315.198
OR
cloudfoundryxenial_stemcellsRange<456.125
OR
cloudfoundryxenial_stemcellsRange<621.89
OR
cloudfoundrycf-deploymentRange<14.0.0
VendorProductVersionCPE
cloudfoundrycflinuxfs3*cpe:2.3:a:cloudfoundry:cflinuxfs3:*:*:*:*:*:*:*:*
cloudfoundryxenial_stemcells*cpe:2.3:a:cloudfoundry:xenial_stemcells:*:*:*:*:*:*:*:*
cloudfoundrycf-deployment*cpe:2.3:a:cloudfoundry:cf-deployment:*:*:*:*:*:*:*:*

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CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

EPSS

0.004

Percentile

72.3%

JSON
Related for CFOUNDRY:6212B057FC69171CB35A504A83DF4903
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