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cloudfoundryCloud FoundryCFOUNDRY:9A5CE830054CE1E47D434550CA2F7180
HistoryApr 08, 2020 - 12:00 a.m.

USN-4305-1: ICU vulnerability | Cloud Foundry

2020-04-0800:00:00
Cloud Foundry
www.cloudfoundry.org
12

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.004 Low

EPSS

Percentile

73.7%

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

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

Description

André Bargull discovered that ICU incorrectly handled certain strings. An attacker could possibly use this issue to execute arbitrary code.

CVEs contained in this USN include: CVE-2020-10531.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • cflinuxfs3
    • All versions prior to 0.171.0
  • Xenial Stemcells
    • 97.x versions prior to 97.239
    • 170.x versions prior to 170.210
    • 250.x versions prior to 250.189
    • 315.x versions prior to 315.175
    • 456.x versions prior to 456.104
    • 621.x versions prior to 621.64
    • All other stemcells not listed.
  • CF Deployment
    • All versions prior to v12.37.0

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 0.171.0 or greater
  • Xenial Stemcells
    • Upgrade 97.x versions to 97.239 or greater
    • Upgrade 170.x versions to 170.210 or greater
    • Upgrade 250.x versions to 250.189 or greater
    • Upgrade 315.x versions to 315.175 or greater
    • Upgrade 456.x versions to 456.104 or greater
    • Upgrade 621.x versions to 621.64 or greater
    • All other stemcells should be upgraded to the latest version available on bosh.io.
  • CF Deployment
    • Upgrade All versions to v12.37.0 or greater

References

History

2020-03-17: Initial vulnerability report published.

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.004 Low

EPSS

Percentile

73.7%

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