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cloudfoundryCloud FoundryCFOUNDRY:840ABEAD3DDCFADF1D9C8DC05DC9F3B5
HistoryMay 23, 2024 - 12:00 a.m.

USN-6733-1: GnuTLS vulnerabilities | Cloud Foundry

2024-05-2300:00:00
Cloud Foundry
www.cloudfoundry.org
2
gnutls
canonical ubuntu
cloud foundry
ecdsa
cve-2024-28834
cve-2024-28835
denial of service
update
cflinuxfs4
jammy stemcells
cf deployment

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

7.4 High

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.1%

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 22.04

Description

It was discovered that GnuTLS had a timing side-channel when performing certain ECDSA operations. A remote attacker could possibly use this issue to recover sensitive information. (CVE-2024-28834) It was discovered that GnuTLS incorrectly handled verifying certain PEM bundles. A remote attacker could possibly use this issue to cause GnuTLS to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.10. (CVE-2024-28835) Update Instructions: Run sudo pro fix USN-6733-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: gnutls-bin – 3.6.13-2ubuntu1.11 gnutls-doc – 3.6.13-2ubuntu1.11 guile-gnutls – 3.6.13-2ubuntu1.11 libgnutls-dane0 – 3.6.13-2ubuntu1.11 libgnutls-openssl27 – 3.6.13-2ubuntu1.11 libgnutls28-dev – 3.6.13-2ubuntu1.11 libgnutls30 – 3.6.13-2ubuntu1.11 libgnutlsxx28 – 3.6.13-2ubuntu1.11 No subscription required

CVEs contained in this USN include: CVE-2024-28834, CVE-2024-28835.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • cflinuxfs4
    • All versions prior to 1.90.0
  • Jammy Stemcells
    • 1.x versions prior to 1.439
    • All other stemcells not listed.
  • CF Deployment
    • All versions with Jammy Stemcells prior to 1.439

Mitigation

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

The Cloud Foundry project recommends upgrading the following releases:

  • cflinuxfs4
    • Upgrade all versions to 1.90.0 or greater
  • Jammy Stemcells
    • Upgrade 1.x versions to 1.439 or greater
    • All other stemcells should be upgraded to the latest version available on bosh.io.
  • CF Deployment
    • For all versions, upgrade Jammy Stemcells to 1.439 or greater

References

History

2024-05-23: Initial vulnerability report published.

Affected configurations

Vulners
Node
cloud_foundrydiegoRange<1.90.0
OR
cloud_foundrydiegoRange<1.439
OR
cloud_foundrycf-networkingRange<1.439

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

7.4 High

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.1%