Lucene search

K
cloudfoundryCloud FoundryCFOUNDRY:AD8D2DF0CF7DDDCBAEF5133081334319
HistoryFeb 29, 2024 - 12:00 a.m.

USN-6541-2: GNU C Library regression | Cloud Foundry

2024-02-2900:00:00
Cloud Foundry
www.cloudfoundry.org
9
vulnerability
ubuntu 22.04 lts
cloud foundry
fix
memory leak
denial of service
cflinuxfs4
jammy stemcells
cf deployment

CVSS3

7.5

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

AI Score

7.4

Confidence

Low

EPSS

0.001

Percentile

48.7%

Severity

Unknown

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 22.04

Description

USN-6541-1 fixed vulnerabilities in the GNU C Library. Unfortunately, changes made to allow proper application of the fix for CVE-2023-4806 in Ubuntu 22.04 LTS introduced an issue in the NSCD service IPv6 processing functionalities. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that the GNU C Library was not properly handling certain memory operations. An attacker could possibly use this issue to cause a denial of service (application crash). (CVE-2023-4806, CVE-2023-4813) It was discovered that the GNU C library was not properly implementing a fix for CVE-2023-4806 in certain cases, which could lead to a memory leak. An attacker could possibly use this issue to cause a denial of service (application crash). This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2023-5156) Update Instructions: Run sudo pro fix USN-6541-2 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libc-bin – 2.35-0ubuntu3.6 glibc-doc – 2.35-0ubuntu3.6 locales-all – 2.35-0ubuntu3.6 libc6-i386 – 2.35-0ubuntu3.6 libc6-s390 – 2.35-0ubuntu3.6 libc6-dev-i386 – 2.35-0ubuntu3.6 nscd – 2.35-0ubuntu3.6 libc6-dev-x32 – 2.35-0ubuntu3.6 libc6-dev – 2.35-0ubuntu3.6 libc6-amd64 – 2.35-0ubuntu3.6 libc6-x32 – 2.35-0ubuntu3.6 libc6-dev-amd64 – 2.35-0ubuntu3.6 libc-dev-bin – 2.35-0ubuntu3.6 libc6 – 2.35-0ubuntu3.6 libc6-prof – 2.35-0ubuntu3.6 libc-devtools – 2.35-0ubuntu3.6 glibc-source – 2.35-0ubuntu3.6 libc6-dev-s390 – 2.35-0ubuntu3.6 locales – 2.35-0ubuntu3.6 No subscription required

Affected Cloud Foundry Products and Versions

Severity is unknown unless otherwise noted.

  • cflinuxfs4
    • All versions prior to 1.64.0
  • Jammy Stemcells
    • 1.x versions prior to 1.351
    • All other stemcells not listed.
  • CF Deployment
    • All versions with Jammy Stemcells prior to 1.351

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 1.64.0 or greater
  • Jammy Stemcells
    • Upgrade 1.x versions to 1.351 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 1.351 or greater

References

History

2024-02-29: Initial vulnerability report published.

Affected configurations

Vulners
Node
cloudfoundrygorouterRange<1.64.0
OR
cloudfoundrygorouterRange<1.351
OR
cloudfoundrycf-deploymentRange<1.351

CVSS3

7.5

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

AI Score

7.4

Confidence

Low

EPSS

0.001

Percentile

48.7%