Duplicate Advisory: cert-manager ha a potential slowdown / DoS when parsing specially crafted PEM inputs
Date: 2024-12
Affected: go/github.com/cert-manager/cert-manager, go/github.com/cert-manager/cert-manager, go/github.com/cert-manager/cert-manager
Attack vector: dos
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2024-12401
CWE: CWE-20
CVSS: 4.4 (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H)

# Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r4pg-vg54-wxx4.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.


Mitigations:

Architectural layers (MAESTRO):