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cloudfoundryCloud FoundryCFOUNDRY:5EA8EE4734BECA5E26F0C02B2E976F48
HistoryJul 28, 2022 - 12:00 a.m.

USN-5431-1: GnuPG vulnerability | Cloud Foundry

2022-07-2800:00:00
Cloud Foundry
www.cloudfoundry.org
9

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.01 Low

EPSS

Percentile

83.6%

usn-5431-1

Severity

Low

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 18.04

Description

It was discovered that GnuPG was not properly processing keys with large amounts of signatures. An attacker could possibly use this issue to cause a denial of service. Update Instructions: Run sudo ua fix USN-5431-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: dirmngr – 2.2.4-1ubuntu1.5 gpgv-static – 2.2.4-1ubuntu1.5 gpgv-win32 – 2.2.4-1ubuntu1.5 scdaemon – 2.2.4-1ubuntu1.5 gpgsm – 2.2.4-1ubuntu1.5 gpgv – 2.2.4-1ubuntu1.5 gpg – 2.2.4-1ubuntu1.5 gnupg-agent – 2.2.4-1ubuntu1.5 gnupg2 – 2.2.4-1ubuntu1.5 gpgv2 – 2.2.4-1ubuntu1.5 gnupg-utils – 2.2.4-1ubuntu1.5 gnupg-l10n – 2.2.4-1ubuntu1.5 gpg-wks-server – 2.2.4-1ubuntu1.5 gpg-agent – 2.2.4-1ubuntu1.5 gnupg – 2.2.4-1ubuntu1.5 gpg-wks-client – 2.2.4-1ubuntu1.5 gpgconf – 2.2.4-1ubuntu1.5 No subscription required

CVEs contained in this USN include: CVE-2019-13050.

Affected Cloud Foundry Products and Versions

Severity is low unless otherwise noted.

  • Bionic Stemcells
    • 1.x versions prior to 1.87
    • All other stemcells not listed.
  • cflinuxfs3
    • All versions prior to 0.302.0
  • CF Deployment
    • All versions prior to 21.4.0, or later versions with Bionic Stemcells prior to 1.87

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below.

The Cloud Foundry project recommends upgrading the following releases:

  • Bionic Stemcells
    • Upgrade 1.x versions to 1.87 or greater
    • All other stemcells should be upgraded to the latest version available on bosh.io.
  • cflinuxfs3
    • Upgrade all versions to 0.302.0 or greater
  • CF Deployment
    • Upgrade all versions to 21.4.0 or greater and upgrade Bionic Stemcells to 1.87 or greater

References

History

2022-07-28: Initial vulnerability report published.

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.01 Low

EPSS

Percentile

83.6%

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