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cloudfoundryCloud FoundryCFOUNDRY:9E4F229463FCBB3F72D8A43A5A386007
HistoryFeb 10, 2021 - 12:00 a.m.

USN-4694-1: Linux kernel vulnerability | Cloud Foundry

2021-02-1000:00:00
Cloud Foundry
www.cloudfoundry.org
21
linux kernel
cloud foundry
canonical ubuntu
lio scsi
xenial stemcells
cve-2020-28374
vulnerability
mitigation
bosh.io

CVSS2

5.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.004

Percentile

72.9%

JSON

Severity

High

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 14.04
  • Canonical Ubuntu 16.04

Description

It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data.

CVEs contained in this USN include: CVE-2020-28374.

Affected Cloud Foundry Products and Versions

Severity is high unless otherwise noted.

  • Xenial Stemcells
    • 456.x versions prior to 456.133
    • 621.x versions prior to 621.97
    • All other stemcells not listed.

Mitigation

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

  • Xenial Stemcells
    • Upgrade 456.x versions to 456.133 or greater
    • Upgrade 621.x versions to 621.97 or greater
    • All other stemcells should be upgraded to the latest version available on bosh.io.

References

History

2021-02-10: Initial vulnerability report published.

Affected configurations

Vulners
Node
cloudfoundryxenial_stemcellsRange<456.133
OR
cloudfoundryxenial_stemcellsRange<621.97
VendorProductVersionCPE
cloudfoundryxenial_stemcells*cpe:2.3:a:cloudfoundry:xenial_stemcells:*:*:*:*:*:*:*:*

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CVSS2

5.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.004

Percentile

72.9%

JSON
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