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Duplicate Advisory: cert-manager ha a potential slowdown / DoS when parsing specially crafted PEM inputs

Moderate severity GitHub Reviewed Published Dec 12, 2024 to the GitHub Advisory Database • Updated Dec 12, 2024
Withdrawn This advisory was withdrawn on Dec 12, 2024

Package

gomod github.com/cert-manager/cert-manager (Go)

Affected versions

< 1.12.14
>= 1.13.0-alpha.0, < 1.15.4
>= 1.16.0-alpha.0, < 1.16.2

Patched versions

1.12.14
1.15.4
1.16.2

Description

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-r4pg-vg54-wxx4. This link is maintained to preserve external references.

Original Description

A flaw was found in the cert-manager package. This flaw allows an attacker who can modify PEM data that the cert-manager reads, for example, in a Secret resource, to use large amounts of CPU in the cert-manager controller pod to effectively create a denial-of-service (DoS) vector for the cert-manager in the cluster.

References

Published by the National Vulnerability Database Dec 12, 2024
Published to the GitHub Advisory Database Dec 12, 2024
Reviewed Dec 12, 2024
Withdrawn Dec 12, 2024
Last updated Dec 12, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.213%
(59th percentile)

Weaknesses

CVE ID

CVE-2024-12401

GHSA ID

GHSA-ghw8-3xqw-hhcj

Source code

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