CVE-2023-6476: enterprise linux DoS — Fix

Description

A flaw was found in CRI-O that involves an experimental annotation leading to a container being unconfined. This may allow a pod to specify and get any amount of memory/cpu, circumventing the kubernetes scheduler and potentially resulting in a denial of service in the node.

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CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-770 CWE-770

Affected Products

Vendor	Product	Versions
redhat	openshift_container_platform	All
redhat	openshift_container_platform	All
redhat	openshift_container_platform	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All

References

Advisories & Patches

https://access.redhat.com/errata/RHSA-2024:0195 https://access.redhat.com/errata/RHSA-2024:0207 https://access.redhat.com/security/cve/CVE-2023-6476 https://bugzilla.redhat.com/show_bug.cgi?id=2253994 https://access.redhat.com/errata/RHSA-2024:0195 https://access.redhat.com/errata/RHSA-2024:0207 https://access.redhat.com/security/cve/CVE-2023-6476 https://bugzilla.redhat.com/show_bug.cgi?id=2253994

Frequently Asked Questions

What is CVE-2023-6476? +

A flaw was found in CRI-O that involves an experimental annotation leading to a container being unconfined. This may allow a pod to specify and get any amount of memory/cpu, circumventing the kubernetes scheduler and potentially resulting in a denial of service in the node. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2023-6476? +

CVE-2023-6476 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-6476? +

CVE-2023-6476 affects products from redhat, specifically: enterprise_linux, openshift_container_platform. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-6476? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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