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cloudfoundryCloud FoundryCFOUNDRY:D18C016FED8F2EC566E781EC4B141FB0
HistoryNov 19, 2020 - 12:00 a.m.

USN-4593-1: FreeType vulnerability | Cloud Foundry

2020-11-1900:00:00
Cloud Foundry
www.cloudfoundry.org
22

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.026 Low

EPSS

Percentile

90.0%

Severity

High

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 16.04
  • Canonical Ubuntu 18.04

Description

Sergei Glazunov discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privileges.

CVEs contained in this USN include: CVE-2020-15999.

Affected Cloud Foundry Products and Versions

Severity is high unless otherwise noted.

  • cflinuxfs3
    • All versions prior to 0.210.0
  • Xenial Stemcells
    • 315.x versions prior to 315.199
    • 456.x versions prior to 456.126
    • 621.x versions prior to 621.90
    • 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 0.210.0 or greater
  • Xenial Stemcells
    • Upgrade 315.x versions to 315.199 or greater
    • Upgrade 456.x versions to 456.126 or greater
    • Upgrade 621.x versions to 621.90 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.

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.026 Low

EPSS

Percentile

90.0%