How severe is CVE-2023-0056?

CVE-2023-0056 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-0056 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0056?

CVE-2023-0056 primarily affects Redhat Ceph Storage. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-0056?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-0056 published?

CVE-2023-0056 was published on 2023-03-23 and last updated on 2026-06-17.

CVE-2023-0056

CVE-2023-0056 is a medium-severity vulnerability in Redhat Ceph Storage with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Redhat Ceph Storage
Published: 2023-03-23
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-0056?: 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.
How severe is CVE-2023-0056?: CVE-2023-0056 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-0056 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0056?: CVE-2023-0056 primarily affects Redhat Ceph Storage. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-0056?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-0056 published?: CVE-2023-0056 was published on 2023-03-23 and last updated on 2026-06-17.

References

https://access.redhat.com/security/cve/CVE-2023-0056

Affected products (21)

cpe:2.3:a:haproxy:haproxy:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage:5.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:software_collections:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.12:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_ibm_linuxone:4.12:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_power:4.12:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_ibm_z_systems:4.12:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.10:*:*:*:*:*:arm64:*
cpe:2.3:a:redhat:openshift_container_platform:4.11:*:*:*:*:*:arm64:*
cpe:2.3:a:redhat:openshift_container_platform:4.12:*:*:*:*:*:arm64:*
cpe:2.3:a:redhat:openshift_container_platform:4.10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_ibm_linuxone:4.10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_power:4.10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_ibm_z_systems:4.10:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.11:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_ibm_linuxone:4.11:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_for_power:4.11:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform_ibm_z_systems:4.11:*:*:*:*:*:*:*
cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

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