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CVE

CVE-2023-0056

An uncontrolled resource consumption vulnerability was discovered in HAProxy which could crash the service. This issue c

An uncontrolled resource consumption vulnerability was discovered in HAProxy which could crash the service. This issue could allow an authenticated remote attacker to run a specially crafted malicious server in an OpenShift cluster. The biggest impact is to availability.

MEDIUM · CVSS 6.5 EPSS 0.00147
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
CWE-400Uncontrolled Resource Consumption
CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

9
haproxyall versions
redhat ceph storageall versions
redhat software collectionsall versions
redhat openshift container platformall versions
redhat openshift container platform for ibm linuxoneall versions
redhat openshift container platform for powerall versions
redhat openshift container platform ibm z systemsall versions
fedoraproject extra packages for enterprise linuxall versions
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Mar 2023 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

14
suse-csafsuse-fu-2023_2117-1
suse-csafsuse-fu-2023_2119-1
rhsaRHSA-2024:0746Moderate
rhsaRHSA-2023:1325Moderate
rhsaRHSA-2023:1696Important
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2023-0056Vendor Advisory
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